The International Comparative Legal Guide – Patents 2014

by Alejandro Luna & César Ramos

1          Patent Enforcement

1.1       How and before what tribunals can a patent be enforced against an infringer?

The only avenue to enforce a patent is through administrative proceedings (an infringement action) before the Mexican Patent Office (IMPI) which is not a court of Law.  There is a proposal under discussion in the Mexican Congress to provide the titleholder the option to enforce IP rights before IMPI or a Civil Court, whereas in the latter, the claim of damages can be claimed in parallel to the violation of the IP right, as opposed to the current legal scenario where it is necessary to exhaust all the methods of the administrative infringement action prior to claiming damages. However, at the time of writing this article, this proposal remains under discussion.

1.2       What are the pre-trial procedural stages and how long does it generally take for proceedings to reach trial from commencement?

In Mexico, there is no pre-trial stage or discovery.

1.3       Can a defence of patent invalidity be raised and if so how?

According to the IP Law, a defendant can file an invalidity action against a patent as a counterclaim within the same statutory term for filing the response to the infringement action.  An independent invalidity action can be filed, but if it is not filed along with the brief of response, it is decided separately from the infringement.

1.4       How is the case on each side set out pre-trial? Is any technical evidence produced and if so how?

All technical evidence is to be filed at the infringement action proceeding or with the invalidity action filed as a counterclaim before the IMPI.  The applicable regulations do not contemplate a pre-trial stage, therefore there is no evidence produced in such a stage.

1.5       How are arguments and evidence presented at the trial?  Can a party change its pleaded arguments before and/or at trial?

Arguments should be filed in writing and following applicable procedural rules.  All arguments and evidence must be filed along with the initial brief requesting the infringement action, with an exception being provided for supervening evidence.  The general rule is that no changes are allowed in pleaded arguments.  The only variation of argumentation that may be allowed is when it derives from unknown facts and argumentation raised by the defendant in the defence.

1.6       How long does the trial generally last and how long is it before a judgment is made available?

The initial stage before the IMPI of a patent infringement action usually takes between two and four years.  Once the IMPI issues a decision, the appeal stage before an administrative court usually takes between one and two years.  A final stage of appeal before a circuit court will take from six to eight months.

1.7       Are there specialist judges or hearing officers and if so do they have a technical background?

The IMPI is considered the only authority to solve patent enforcement proceedings in a first instance hearing.

In January 2009, a specialised IP Division at the FCTAA began operating.  This Division has jurisdiction to review all cases based on the IPL, the Federal Copyright Act, the Federal Law of Plant Varieties and other IP-related provisions.  The creation of this Division improved in general terms the applicable criteria for IP cases, but the three Magistrates that sit on this tribunal have no technical background.

1.8       What interest must a party have to bring (i) infringement (ii) revocation and (iii) declaratory proceedings?

I)   Any patentee or licensee (unless expressly forbidden from doing so) has the right to prosecute a suit against a third party infringing his or her rights.  A distributor may not bring a suit for infringement.

II) An accused infringer may counterclaim patent invalidity under formal or technical considerations, upon receiving the infringement suit before the IMPI but it is not possible to request an additional judicial ruling or declaration.

III) Cease and desist letters provide the required legal standing to initiate invalidity actions.  If, pertaining to a specific industrial or commercial activity (i.e. the pharma industry), legal standing needs to be provided, this is subject to debate and the courts are divided.

IV)        Amendments to the patent law allow anyone to request that the IMPI initiate officiously the cancellation proceeding against patents.

1.9       Can a party be compelled to provide disclosure of relevant documents or materials to its adversary and if so how?

According to what is set forth in article 192bis of the IP Regulation, the IMPI may obtain all the evidence deemed as necessary for the verification of facts that may constitute a violation of one or more of the rights protected by this Act or the administrative declaration procedures.

When the owner concerned or the alleged infringer has submitted sufficient evidence to reasonably have access to support his claims and has specified evidence relevant to the substantiation of its claims that is under the control of the opposing party, the IMPI may order the presentation of such evidence and, where applicable, this authority should ensure the conditions for the protection of confidential information.

1.10      Can a party be liable for infringement as a secondary (as opposed to primary) infringer? Can a party infringe by supplying part of but not all of the infringing product or process?

There is no specific provision in the IP law relating to the doctrine of contributory infringement but there is a small margin to argue in favour of this doctrine; however, it has not been tested before the IMPI or the courts.  Actions may be brought against distributors of an infringing product and provisional measures may be imposed on third parties to some extent.

1.11      Can a party be liable for infringement of a process patent by importing the product when the process is carried on outside the jurisdiction?

The Mexican Patent Law recognises the exclusive right of the titleholder to prevent the importation of products obtained from a patented process.  Therefore, importation of a product infringing a granted Mexican process patent when the process is carried out abroad can be liable for patent infringement in Mexico.

1.12      Does the scope of protection of a patent claim extend to non-literal equivalents?

It has been interpreted that only literal infringement is recognised under the current IP law.  Infringement under the doctrine of equivalence is not expressly provided in the law; a broader interpretation of the patent law to explore the doctrine of equivalents has not been tested before the Mexican courts.

1.13      In what circumstances does the “repair” of a patented article amount to infringement?

There is no express defence recognised in the statutory patent law based on the “repair” doctrine and as far as we know the issue has not been tested before the courts, according to certain principles of the general and patent law, we tend to believe that the mere repair of a patented product would be considered lawful.  Likewise, there is no express action against impermissible reconstruction; however, there is room in the law to elaborate that in general terms this conduct may be considered patent infringement.  There is no case law relating to these two issues.

1.14      Other than lack of novelty and inventive step, what are the grounds for invalidity of a patent?

According to the IP law, patents are valid unless proven otherwise.  Thus the IP law establishes several grounds upon which a patent can be invalidated:

(1)    When it was granted in contravention of the provisions on requirements and conditions for the grant of patents or registrations of utility models and industrial designs.  Said requirements and conditions for the grant of patents and registrations are those established in Articles 16, 19, 27, 31 and 47 of the IP Law (novelty, obviousness and utility).

(2)    When it was granted in contravention of the provisions of the law in force at the time when the patent or registration was granted.

The nullity action based on this section may not be based on a challenge of the legal representation of the applicant when prosecuting and obtaining a patent or a registration.

(3)    When the application is abandoned during its prosecution.

(4)    When granted by error or serious oversight, or when it is granted to someone not entitled to obtain it.

The nullity action mentioned under (1) and (2) may be filed at any time; the actions under (3) and (4) must be filed within five years, counted from the date on which the publication of the patent or registration in the Gazette becomes effective.

1.15      Are infringement proceedings stayed pending resolution of validity in another court or the Patent Office?

Under certain applicable procedural rules, yes.

1.16      What other grounds of defence can be raised in addition to non-infringement or invalidity?


The basis of this defence is that the proper interpretation of the patent claim does not catch the alleged infringing product or process.

Challenging the validity of patents

Under the IP Law, patents are valid until the contrary is proven.

One of the most common defences in patent litigation in Mexico is to attack the validity of the allegedly infringed patent.  As the patent exists, an administrative resolution is required to declare its annulment.  This defence must be alleged when replying to the plaintiff’s claim, by means of a counterclaim.  The IMPI will give notification of the counterclaim to the party who filed the original complaint.  Both the infringement claim and the counterclaim should be resolved simultaneously to preclude the possibility of contradictory outcomes.  The grounds for invalidating a patent are mentioned in question 1.12.

Fair or experimental use

In the case of medicines, a party shall be entitled to apply for the registration of a product relating to a substance or active ingredient covered by a patent pertaining to someone else, if the application is filed within three years of the corresponding patent expiring.  This provision, supported by the “Roche Bolar Exception”, would allow the applicant to start performing tests and experiments in order to be ready to enter the market as soon as the patent has expired.

1.17      Are (i) preliminary and (ii) final injunctions available and if so on what basis in each case?

The IP Law provides for the possibility of requesting provisional injunctions whereby the IMPI can take certain measures against defendants.  These are listed in article 199bis.

If the plaintiff chooses to request the IMPI to order a provisional injunction, a bond will be fixed to warrant possible damages to the defendant.  This injunction is to be petitioned in writing, and within 20 days of its execution, the plaintiff is required to file a formal written claim of infringement.  Failure to do so will cause the plaintiff to lose the bond in favour of the defendant.  This party has the right to post a counter-bond to stop the effects of the provisional injunction.  Defendants have the right to allege whatever they deem pertinent with respect to the provisional injunctions within a term of 10 days from the date of execution.

The provisional injunctions established by the various sections of article 199bis include:

•    ordering the recall or impeding circulation of the infringing merchandise;

•    ordering the following to be withdrawn from circulation:

•    illegally manufactured or used articles;

•    articles, packaging, wrapping, stationery, advertising material, and other similar items that infringe upon any of the rights protected by law;

•    advertisements, signs, posters, stationery, and other, similar articles that infringe any of the rights protected by law; and

•    utensils or instruments destined for or used in the manufacture, production, or obtainment of any of the concepts indicated in the above sub-bulleted points;

•    immediately prohibiting the marketing or use of the products with which any rights protected by the law are violated;

•    ordering the attachment of the commodities of the products pursuant to articles 211 to 212bis(2);

•    ordering the alleged transgressor or third parties to suspend or cease all acts that constitute a violation of the provisions of the law; and

•    ordering a suspension of service or the closure of the establishment when the measures indicated in the preceding paragraphs are insufficient to prevent or avoid the violation of rights protected by the law.

The IP Law establishes that a petitioner of preliminary injunctions will be held responsible for payment of possible damages caused to the party against which said injunctions were implemented, thus the petitioner is requested to post a bond.  A defendant is allowed, however, to post a counter bond to release the preliminary injunctions.

In compliance with Article 199bis 4 of the IP Law, the IMPI will place the bond or counter bond at the disposal of the party that prevailed in the litigation when the decision of the IMPI becomes final, that is, beyond the scope of appeal.

1.18      On what basis are damages or an account of profits estimated?

The IP Law contemplates a claim for damages and lost profit in a civil law action.  Damages and lost profit start accruing from the date on which the existence of an infringement can be proven.  Even though claims for damages involve a lengthy proceeding in addition to the administrative infringement action, the wording of Mexican laws intends to provide fair compensation to the affected party.

Article 221bis establishes that the award to the plaintiff in infringement cases cannot be less than 40% of the sale price to the public of each infringing product or service.  However, to be allowed to claim damages, the affected title holder must have a final decision without being the subject of appeal declaring that the patent was infringed and this proceeding can take years of litigation.

1.19      What other form of relief can be obtained for patent infringement?

Costs and attorneys’ fees can be recovered in a civil claim for damages and lost profits.  This takes place after the IMPI has declared the administrative infringement.  The civil courts follow a specific scheme for reasonable attorneys’ fees, regardless of whether this table reflects the actual fees charged.

Criminal sanctions in the event of recidivism are also contemplated in the IP Law.

1.20      Are declarations available and if so can they address (i) non-infringement and/or (ii) claim coverage over a technical standard or hypothetical activity?

There are no declarations available in the Mexican IP system.

1.21      After what period is a claim for patent infringement time-barred?

The IMPI’s current criterion is that the time limit for seeking a remedy is that it must be done during the life term of the patent.  Once the patent has expired, an action may not be brought for events that took place before the end of the life term.  A defence of laches has not been tested before the courts; therefore, legally speaking, a specific time limit exists in the IP Law to bring an infringement action during the life term of the patent.

However, there is a two-year limitation period to pursue a civil action for damages; therefore this statutory term to claim damages should be taken into consideration when looking at the timing to file infringing actions.

1.22      Is there a right of appeal from a first instance judgment and if so is it a right to contest all aspects of the judgment?

Appeals against the IMPI can be brought either before the specialised IP Division of the Federal Administrative Court, or before Federal District Judges.  Decisions by either court can be appealed in a final stage before Federal Circuit Courts.

1.23      What are the typical costs of proceedings to first instance judgment on (i) infringement and (ii) validity; how much of such costs are recoverable from the losing party?

Government fees for the administration of patent infringements are minimal and there are no government costs in the subsequent appeal stages.

Costs and attorneys’ fees may be recovered in a civil claim for damages and lost profits, as mentioned in question 1.17.

2          Patent Amendment

2.1       Can a patent be amended ex parte after grant and if so how?

According to Article 61 of the Industrial Property Law, the text or drawings of a granted patent may only be amended by the patent owner in the following circumstances:

I.             to correct any obvious or form errors; and

II.            to limit the scope of the claims.

The authorised changes shall be published in the Official Gazette.

An amendment after allowance is requested in writing to the Mexican Patent Office, briefly explaining the reasons underlying the errors that are being corrected or the limitations being introduced to the claims.

2.2       Can a patent be amended in inter partes revocation proceedings?

In an invalidity action requested by a third party, which may result in a partial nullity of the patent, limiting the scope of the patent, a voluntary amendment would be allowed in an inter partes proceeding if both parties agree and if the general rules of the civil law are followed.

2.3       Are there any constraints upon the amendments that may be made?

The amendments are restricted to correct any obvious or form errors, and to limit the scope of the claims.

3          Licensing

3.1       Are there any laws which limit the terms upon which parties may agree a patent licence?

Pursuant to article 63 of the Mexican Industrial Property Law, it is possible to record a licence either onto a granted patent or in a pending application, so that the same may be opposed against third parties.

The limitation to the terms upon which parties may agree a patent licence are found in Article 66 which establishes that the term of the licence may not exceed the natural term of the patent itself and may not be recorded when a patent has already elapsed.

Article 67 establishes the chance for the owner to grant further licences, unless expressly agreed to the contrary.

It is important to mention that the law indicates that the licensee may exert defensive rights over the patent, unless specifically accorded, while workings of the licensee can be to the benefit of the licensor.

Finally, in regard to the cancellation of the licence records, the Mexican Industrial Property Law establishes that the cancellation occurs when: 1) the same should be requested by both the licensee and the licensor jointly; 2) the patent lapses or is declared null; or 3) by a court order.

3.2       Can a patent be the subject of a compulsory licence and if so how are the terms settled and how common is this type of licence?

The following provisions of the Mexican Law of Industrial Property are relevant with regard to compulsory licences.

Article 70 of the Law states that after three years, starting from the date of grant of the patent, or four years from the filing date, whichever is later, anyone may request from the IMPI the grant of a compulsory licence when it has not been used, except if duly justified reasons exist.

The same article also establishes that there will be no grant of a compulsory licence when the holder of the patent or a licensee has been carrying the importation of the patented product or the product obtained by the patented process.  Further, Article 69 states that the working of a patent by a licensee will be deemed to be worked by its holder, provided that the licence was recorded with the IMPI.

Article 71 states that the party applying for a compulsory licence shall have the technical and economical capacity to efficiently work the patented invention.

On the other hand, Article 72 establishes that before the grant of the first compulsory licence, the IMPI will provide the patentee with the opportunity to begin working the patent within a term of one year from the date of personal notification given to him.  Following a hearing with the parties, the IMPI will decide on the grant of a compulsory licence, and if the IMPI decides to grant it, it will set forth its duration, conditions, field of application and amount of royalties that correspond to the holder of the patent.

We are not aware that any compulsory licence has been granted in the recent years.  In any event, the royalties are established by the IMPI after a hearing with the parties and they should be fair and reasonable.


4          Patent Term Extension

4.1       Can the term of a patent be extended and if so (i) on what grounds and (ii) for how long?

The Mexican Regulations do not establish the possibility of patent life term extensions.  However, it is important to mention that there are obligations derived from international treaties such as NAFTA which establishes the possibility of patent life term extensions when the Health Authority delays the process to obtain a marketing authorisation for a patented product.

Please note that no one has tried to obtain a patent life term extension through the application of this channel, which is regulated by international treaties.

Therefore, in the eventual case that someone would try this kind of action derived from the delay by the Health Authority in the process of obtaining a marketing authorisation for a patented product, we consider that it is necessary to argue the direct application of the international treaties as a supremacy law, as international treaties in fact rule over domestic law.

We have knowledge that patent term extensions for regulatory and patent prosecution delays have been discussed in the negotiations of the Transpacific-Pact TPP that Mexico is willing to be part, therefore, if the TPP is signed by Mexico and the US proposal to include patent term restoration terms subsists, there will be surely an impact on the domestic law.

Notwithstanding that, the IMPI does not allow an extension of patent terms, as discussed above, term extensions are not provided in the Patent Law per se; our law firm achieved corrections gaining more time in the expiration date of patents through legal proceedings only for pipeline patents, granted in accordance with Transitory Article 12 of the Mexican Law for the Promotion and Protection of Industrial Property Law enacted back in June 1991.

5          Patent Prosecution and Opposition

5.1       Are all types of subject matter patentable and if not what types are excluded?

The following subject matters are not patentable in Mexico:

I.             essentially biological processes for obtaining, reproducing and propagating plants and animals;

II.            biological and genetic material as found in nature;

III.           animal breeds;

IV.          the human body and the living matter constituting it; and

V.           plant varieties.

On the other hand, the following subject matters are not considered as inventions in Mexico:

I.             theoretical or scientific principles;

II.            discoveries that consist of making known or revealing something that already existed in nature, even though it was previously unknown to man;

III.           diagrams, plans, rules and methods for carrying out mental processes, playing games or doing business, and mathematical methods;

IV.          computer programmes;

V.           methods of presenting information;

VI.          aesthetic creations and artistic or literary works;

VII.          methods of surgical, therapeutic or diagnostic treatment applicable to the human body and to animals; and

VIII.      juxtaposition of known inventions or mixtures of known products, or alteration of the use, form, dimensions or materials thereof, except where in reality they are so combined or merged that they cannot function separately or where their particular qualities or functions have been so modified as to produce an industrial result or use not obvious to a person skilled in the art.

5.2       Is there a duty to the Patent Office to disclose prejudicial prior disclosures or documents?  If so, what are the consequences of failure to comply with the duty?

There is no duty for the IMPI to disclose prejudicial prior art or documents.

5.3       May the grant of a patent by the Patent Office be opposed by a third party and if so when can this be done?

In a period of six months after the publication of the patent application, information related to patentability of an invention can be filed before the IMPI by third party.  If filed, the information may be considered at the Examiner’s discretion and it will not suspend the application process.  The person filing the information will not be considered a party and will not have access to the patent file or immediate legal standing to challenge a granted patent.

After a patent is granted, anyone can inform the IMPI of causes of invalidity.  The authority may consider such information discretionally to initiate an ex officio cancellation proceeding.

5.4       Is there a right of appeal from a decision of the Patent Office and if so to whom?

Appeals against decisions of the IMPI can be brought either before a specialised IP Division of the Federal Court for Tax and Administrative Affairs, or before Federal District Judges.  Decisions by either court can be appealed in a final stage before Federal Circuit Courts.

5.5       How are disputes over entitlement to priority and ownership of the invention resolved?

Disputes over entitlement to priority and ownership of the invention are resolved by the IMPI.  A final decision issued by the IMPI may be appealed (see question 5.4).

5.6       Is there a “grace period” in your country and if so how long is it?

The Mexican Law of Industrial Property contemplates a one-year grace period, as follows:

“Article 18. The disclosure of an invention shall not prevent it from continuing to be considered new where, within the 12 months prior to the filing date of the patent application or, where applicable, the recognized priority date, the inventor or his assignee has made the invention known by any means of communication, by putting it into practice or by displaying it at a national or international exhibition. When the corresponding application is filed, the evidentiary documents shall be included in the manner laid down in the Regulations under this Law.

The publication of an invention contained in a patent application or in a patent granted by a foreign office shall not be regarded as corresponding to any of the situations referred to in this Article.”

In order to benefit from the grace period, it is required to file a declaration stating the date, place and means of disclosure, together with the Mexican patent application.

5.7       What is the term of a patent?

The term of a patent is 20 years from the filing date.  No extensions of term are available in Mexico.

6          Border Control Measures

6.1       Is there any mechanism for seizing or preventing the importation of infringing products and if so how quickly are such measures resolved?

The Mexican Industrial Property Law establishes that there are injunctions available for infringement of patent rights on a provisional and permanent basis in Mexico.  Article 148 of the Customs Law establishes the rules for implementing the same with the Mexican Customs.

Generally speaking, in order to grant a preliminary injunction, it is necessary to comply with certain requisites, such as that the holder of the industrial property right has applied to the products, packaging or wrapping of the products protected by the patent, the marking indications, or, by some other means, have made it public knowledge that there is a protected industrial property right.

Other pertinent requisites can be found in Article 199bis 1, which requires that the requesting party also complies with the following:

I.          Prove that they hold a patent right and any of the following in addition:

a)         The existence of an infringement to his right.

b)         That the infringement to his right will be imminent.

c)         The existence of the likelihood of irreparable damages suffered.

d)         The existence of justified fear that the evidence will be destroyed, concealed or altered.

II.         Grant sufficient bond in order to warrant the damages which would be caused to the person against whom the measures are demanded.

III.         Provide the IMPI with the information necessary for the identification of the goods or establishments in which or where the infringement to industrial property rights is occurring.

In regard to the scope of the injunctions, the IMPI may order the alleged infringer or third parties to suspend or discontinue the acts constituting a violation of the provisions of Law and the seizure of goods, such as:

1.            Objects manufactured or used illegally.

2.            Objects, wrappers, containers, packaging, paperwork, advertising material and similar articles that infringe any industrial property right protected by the Industrial Property Law.

3.            Signs, labels, tags, paperwork and similar articles that infringe any of the rights protected by the Industrial Property Law.

4.            Implements or instruments intended or used for the manufacture, preparation or production of any products alleged to infringe relevant industrial property rights.

It is important to mention that the alleged infringer is entitled to file a counterbound to obtain the lifting of the preliminary injunctions.

With regards to the time frame, once the legal requisites are fulfilled, normally preliminary injunctions are adopted and put into practice in a rather fast fashion that may range from 2 to 7 days, depending of the need to implement the same, i.e. seizures at customs, due to the nature of the importation process and the need for a rather quick implementation, may take only 48 hours.

Permanent injunctions are declared once the administrative infringement proceeding is finally decided.

In Mexico, the patent infringement is not considered as a criminal offence.

7          Antitrust Law and Inequitable Conduct

7.1       Can antitrust law be deployed to prevent relief for patent infringement being granted?

There is no precedent in Mexico of antitrust, unfair competition or business-related tort actions brought against patentees for the use of a patent.  Courts generally consider that the use of a state-given right cannot constitute a violation in these areas.

7.2       What limitations are put on patent licensing due to antitrust law?

An action could theoretically be brought for activities falling outside the scope of a patent, such as non-competition agreements for products that are not covered by the claims, product-tying within that scope, or unfair competition activities such as advertising that a product is better than an alternative for the sole reason of it having a patent.  Actions could also be brought before the Antitrust Commission for other forms of abuse of patent rights, such as clearly unfounded attempts to enforce a patent.

8          Current Developments

8.1       What have been the significant developments in relation to patents in the last year?

A new format of communication between IMPI and COFEPRIS for the patent linkage regulation was published as an official decree.  The format intends to provide more clarity to the questions/answers between COFEPRIS and IMPI regarding the patents listed in the gazette.

There was a proposal to provide a special life term for pharmaceutical patents by counting the life term of 20 years from the date of the “first patent application”.  This proposal was aimed at diminishing the life term of pharmaceutical patent for a year.  Following lobbying of law firms and different associations, even though the proposal remains under discussion it has been discarded by some of the main Committees in Congress and therefore it is very likely that the bill will be finally refused.

8.2       Are there any significant developments expected in the next year?

The main event expected by the end of this year is the execution by Mexico of the Transpacific Partnership (TPP), an international free trade agreement which will aim to include high standards in the IP section.   If Mexico forms part of the agreement, it is expected that there will be issues that will have a positive impact in Mexico, broadening IP protection, such as patent term restoration, linkage regulation, non-discrimination of subject matter for patentability and data package exclusivity.


8.3       Are there any general practice or enforcement trends that have become apparent in Mexico over the last year or so?

There is a new administration in the Mexican government following the recent appointment of a new Director of the Mexican Institute of Intellectual Property, Mr. Miguel Angel Margain.  Mr. Margain accepted the position while he was on the private practice as a partner in an IP law firm, therefore, his knowledge on the subject matter and his experience as a user of the system should be positive for IP protection.   Coincidentally, the most recent trends and guidelines instituted by the new administration of IMPI is to expedite and facilitate the proceedings for IP enforcement, i.e. attacking the backlog of pending decisions, providing guidelines to diminish the requirements for the administrative claims and stronger sanctions when defendants oppose the visit of inspections or violate preliminary injunctions.  This seems to be a positive starting point of the new IMPI’s administration; however, the time, statistics and the IMPI’s decisions reviewed by the courts will be decisive on the issue of effectiveness of the IP enforcement system in Mexico.

Source The International Comparative Legal Guide to: Patents 2014