Intellectual Property in France

France is one of Europe's most active jurisdictions for intellectual property protection, combining a sophisticated civil law framework with dedicated criminal enforcement and strong EU-level integration. Businesses operating in France - whether through subsidiaries, licensing arrangements or direct market entry - face a legal environment where IP rights are both well-protected and vigorously contested. Failing to register, monitor or enforce rights in France can result in permanent loss of market position, compulsory licensing exposure or criminal liability for infringers. This article covers the full spectrum of IP protection in France: trademarks, patents, copyright, trade secrets and enforcement mechanisms, with practical guidance on procedure, costs and strategic choices.

French intellectual property law is codified primarily in the Code de la propriété intellectuelle (Intellectual Property Code, CPI), which consolidates rules on literary and artistic property, industrial property and related rights. The CPI was introduced in its current form in 1992 and has been amended repeatedly to implement EU directives, including Directive 2004/48/EC on enforcement and Directive 2016/943/EU on trade secrets.

The principal administrative authority for industrial property is the Institut National de la Propriété Industrielle (INPI - National Institute of Industrial Property), which handles trademark, patent, design and geographical indication registrations. INPI also maintains the national register and processes oppositions. For copyright, there is no registration requirement under French law: protection arises automatically upon creation of an original work. The Société des auteurs, compositeurs et éditeurs de musique (SACEM) and similar collecting societies manage collective rights in specific sectors, but they do not replace individual enforcement.

Judicial competence is divided. The Tribunal judiciaire de Paris (Paris Judicial Court) has exclusive jurisdiction over most IP disputes involving patents, trademarks, designs and copyright with a national or cross-border dimension. Specialist chambers within this court handle technically complex patent cases. The Cour d'appel de Paris (Paris Court of Appeal) hears appeals. Criminal IP matters are handled by the Tribunal correctionnel (Criminal Court), and the Douane (French Customs) has broad powers to detain suspected counterfeit goods at the border.

France is a member of the Paris Convention, the Patent Cooperation Treaty (PCT), the Madrid System for international trademark registration and the European Patent Convention (EPC). This means that a European patent validated in France, or an EU trademark, produces rights enforceable through French courts without a separate national filing - though national validation steps and translation requirements apply to European patents under the London Agreement.

A common mistake made by international clients is assuming that an EU trademark or a European patent validated in France automatically triggers active monitoring or enforcement by French authorities. In practice, rights holders must conduct their own watch services and initiate enforcement proceedings independently.

A French national trademark is a sign capable of distinguishing goods or services of one undertaking from those of others. Under Article L711-1 CPI, protectable signs include words, names, logos, slogans, colours, sounds and three-dimensional shapes, provided they are distinctive, lawful and not deceptive.

Registration with INPI confers a 10-year renewable right. The application process typically takes three to four months from filing to registration, assuming no opposition. INPI publishes the application in the Bulletin officiel de la propriété industrielle (BOPI), opening a two-month opposition window. Oppositions may be filed by holders of earlier rights - prior trademarks, company names, geographical indications or personal names - on grounds set out in Articles L711-2 and L712-4 CPI.

The cost of a national trademark filing at INPI starts at a few hundred euros for one class, with additional fees per class. Legal fees for preparing and prosecuting the application typically start from the low thousands of euros, depending on complexity and the number of classes. For businesses seeking broader protection, an EU trademark through the European Union Intellectual Property Office (EUIPO) covers all EU member states including France and is often more cost-effective for multi-market strategies.

Trademark infringement in France is defined under Article L713-2 CPI as any reproduction, use or imitation of a registered mark without the owner's consent for identical or similar goods or services, where there is a likelihood of confusion. Civil remedies include injunctions, seizure of infringing goods, damages calculated on the basis of lost profits or the infringer's gains, and publication of the judgment. Criminal sanctions under Article L716-9 CPI can reach up to four years' imprisonment and fines of EUR 400,000 for counterfeiting.

A non-obvious risk is the vulnerability of a trademark to cancellation for non-use. Under Article L714-5 CPI, a trademark not genuinely used in France for five consecutive years may be cancelled at the request of any interested party. International clients who register marks defensively without commercial use in France regularly lose them in cancellation proceedings initiated by local competitors.

In practice, it is important to consider that French courts apply a relatively strict standard of proof for genuine use. Invoices, advertising materials, website analytics and physical product samples all contribute to demonstrating use, but the evidence must relate specifically to the French market.

To receive a checklist for trademark registration and enforcement in France, send a request to info@vlo.com.

A French national patent grants a 20-year exclusive right to exploit an invention, subject to annual renewal fees. Under Article L611-1 CPI, patentable inventions must be new, involve an inventive step and be susceptible of industrial application. Excluded from patentability are discoveries, mathematical methods, mental acts, business methods as such, and software to the extent it does not produce a technical effect - though software-implemented inventions with a technical character are protectable.

INPI examines French national patent applications for formal compliance and conducts a prior art search, but does not carry out a substantive examination of inventive step before grant. This means a French national patent may be granted even if it would not survive a validity challenge. Validity is tested in litigation before the Tribunal judiciaire de Paris, which has exclusive jurisdiction over patent nullity actions and infringement claims.

Most international businesses file through the European Patent Office (EPO) under the EPC and then validate the European patent in France. Validation requires filing a French translation of the claims within three months of grant, unless the patent was filed in French. Under the London Agreement, France waived the requirement for a full French translation of the description, which reduces validation costs significantly. Annual renewal fees must be paid to INPI to maintain the validated patent.

The Unitary Patent system, operational since June 2023, allows a single patent to cover most EU member states including France without separate national validation. France is a participating state. The Unified Patent Court (UPC), with a local division in Paris, now has jurisdiction over infringement and validity of unitary patents and opted-in European patents. Rights holders must decide whether to opt out of UPC jurisdiction for existing European patents validated in France - a strategic choice with significant procedural implications.

Patent infringement proceedings in France are complex and expensive. A first-instance case before the Tribunal judiciaire de Paris typically takes two to three years to judgment. Legal fees for a contested patent case start from the mid-five figures in euros and can reach six figures for technically complex disputes. Preliminary injunctions (saisie-contrefaçon) are available under Article L615-5 CPI and allow rights holders to obtain a court-authorised seizure of evidence and infringing products before formal proceedings, which is a powerful tool unavailable in many other jurisdictions.

The saisie-contrefaçon (infringement seizure) is a distinctive feature of French IP procedure. A bailiff (huissier de justice), accompanied by a technical expert if needed, enters the suspected infringer's premises and seizes samples, documents and evidence under a court order obtained ex parte. This evidence is then used in the main infringement action. The procedure is fast - the order can be obtained within days - and highly effective for preserving evidence that might otherwise be destroyed.

A common mistake is underestimating the cost and duration of patent litigation in France. Businesses that initiate proceedings without a realistic budget and timeline often find themselves in a prolonged dispute that drains resources without achieving a commercial resolution. Licensing negotiations or mediation, facilitated by the Centre de Médiation et d'Arbitrage de Paris (CMAP), are viable alternatives that courts increasingly encourage.

French copyright law (droit d'auteur) protects original literary, artistic and software works automatically from the moment of creation, without registration. Under Article L111-1 CPI, the author of an original work enjoys exclusive economic rights and, separately, moral rights (droit moral). Moral rights in France are perpetual, inalienable and imprescriptible - they cannot be waived by contract and survive the author's death, passing to heirs. This is a fundamental difference from common law copyright systems and catches many international businesses off guard.

Economic rights include the right of reproduction, the right of representation (public communication) and the right of adaptation. These rights last for the author's lifetime plus 70 years under Article L123-1 CPI. For works of joint authorship, the 70-year period runs from the death of the last surviving author.

Software copyright in France is governed by Articles L112-2 and L122-6 CPI, implementing EU Directive 2009/24/EC. Software is protected as a literary work, but moral rights apply in a modified form: the employer owns the economic rights to software created by employees in the course of their duties, and the moral right of integrity is limited in the software context. This distinction matters for technology companies that develop software through French employees or contractors.

Enforcement of copyright in France follows the civil litigation route before the Tribunal judiciaire de Paris. Damages are calculated under Article L331-1-3 CPI on the basis of the rights holder's lost profits, the infringer's profits or a lump sum equivalent to the licence fee that would have been due. Courts also award moral damages for harm to the author's reputation or integrity of the work.

The Haute Autorité pour la diffusion des œuvres et la protection des droits sur internet (HADOPI - High Authority for the Distribution of Works and the Protection of Rights on the Internet) was merged into the Autorité de régulation de la communication audiovisuelle et numérique (ARCOM) in 2022. ARCOM administers the graduated response mechanism for online copyright infringement, coordinates with internet service providers and can refer persistent infringers to the public prosecutor. For businesses facing large-scale online piracy of content distributed in France, ARCOM's mechanisms complement civil litigation.

A non-obvious risk for technology businesses is the treatment of open-source software under French law. French courts have enforced open-source licences as binding contracts, and failure to comply with licence conditions - for example, by distributing modified GPL-licensed code without releasing the source - can constitute copyright infringement with civil and criminal consequences.

To receive a checklist for copyright protection and digital enforcement in France, send a request to info@vlo.com.

France implemented EU Directive 2016/943/EU on the protection of undisclosed know-how and business information through the loi du 30 juillet 2018 relative à la protection du secret des affaires (Law on the Protection of Trade Secrets). The rules are now codified in Articles L151-1 to L154-1 of the Code de commerce (Commercial Code).

A trade secret under French law is information that meets three cumulative conditions: it is not generally known or readily accessible to persons in the relevant circles; it has commercial value because of its secrecy; and the holder has taken reasonable steps to keep it secret. This definition aligns with the EU Directive and the TRIPS Agreement.

Reasonable protective measures are both a legal requirement and a practical necessity. French courts assess whether the claimant actually implemented confidentiality agreements, access controls, IT security measures and internal policies. A business that claims trade secret protection without documented security measures will struggle to succeed in litigation. The burden of demonstrating reasonable steps falls on the rights holder.

Misappropriation of a trade secret includes unlawful acquisition, use or disclosure. Under Article L151-4 of the Commercial Code, courts may grant injunctions, order the seizure or destruction of infringing goods, award damages and order publication of the judgment. The limitation period for trade secret claims is five years from the date the claimant knew or should have known of the misappropriation.

A practical scenario: a French subsidiary of a foreign group shares proprietary manufacturing processes with a local distributor under a confidentiality agreement. The distributor later terminates the relationship and begins producing competing products using the same process. The foreign parent can bring a trade secret claim before the Tribunal judiciaire de Paris, seeking an injunction and damages. If the confidentiality agreement contains an arbitration clause, the dispute may be referred to the ICC International Court of Arbitration, seated in Paris, which has extensive experience with IP-related commercial disputes.

A second scenario: a software company based outside France licenses its platform to a French client. A former employee of the French client takes source code to a competitor. The software company can pursue the competitor and the former employee jointly, combining trade secret claims under the Commercial Code with copyright infringement claims under the CPI. French courts accept concurrent claims on both grounds.

A third scenario: a startup in France develops an algorithm and keeps it as a trade secret rather than filing a patent. A competitor independently develops a similar algorithm and begins commercialising it. Unlike patent law, trade secret law does not protect against independent development. The startup has no claim against the competitor unless it can prove actual misappropriation. This illustrates the strategic choice between patent protection - which is public but exclusive - and trade secret protection, which is private but vulnerable to independent discovery and reverse engineering.

The cost of trade secret litigation in France is significant. Legal fees for a contested first-instance case start from the mid-five figures in euros. Interim injunctions are available but require the claimant to demonstrate urgency and a prima facie case. Courts are cautious about granting broad injunctions that could harm third parties or restrict legitimate competition.

We can help build a strategy for protecting trade secrets and other IP assets in France. Contact us at info@vlo.com.

Effective IP enforcement in France requires selecting the right legal instrument for the specific situation. The available tools - civil litigation, criminal complaints, customs seizures, administrative proceedings before INPI and alternative dispute resolution - each have different cost profiles, timescales and strategic implications.

Civil litigation before the Tribunal judiciaire de Paris is the primary route for most IP disputes. The court has specialist IP judges with technical expertise. First-instance proceedings typically take 18 to 36 months. Appeals to the Cour d'appel de Paris add another 12 to 24 months. The total cost of a contested civil case, including legal fees and expert costs, can reach six figures for complex patent or trade secret disputes. For lower-value disputes, the economics may not justify full litigation, and mediation or a cease-and-desist strategy may be more appropriate.

Criminal complaints are an underused but powerful tool. Under Articles L716-9 to L716-14 CPI (for trademarks) and L335-2 to L335-4 CPI (for copyright), counterfeiting is a criminal offence. Filing a criminal complaint with the Brigade de répression de la contrefaçon et de la fraude (BRCF) or the Procureur de la République triggers a police investigation at no direct cost to the rights holder. Criminal proceedings can result in imprisonment, fines and confiscation of infringing goods. The risk is that criminal proceedings are slow and the outcome is uncertain. They are most effective when the infringement is large-scale, organised and involves physical counterfeits.

Customs seizures under the EU Customs Regulation (EU) No 608/2013 allow rights holders to file an application for action (AFA) with French Customs (Direction générale des douanes et droits indirects). Customs can detain suspected counterfeit goods at the border for up to 10 working days, extendable by a further 10 days, while the rights holder decides whether to initiate civil or criminal proceedings. The AFA is valid for one year and renewable. This mechanism is cost-effective for businesses facing repeated importation of counterfeit goods.

INPI opposition and cancellation proceedings are the appropriate tools for challenging conflicting trademark or design registrations. An opposition must be filed within two months of INPI's publication of the application. Cancellation actions for non-use or invalidity can be filed at any time after the relevant period has elapsed. INPI proceedings are faster and cheaper than court litigation, but their scope is limited to the register: they cannot award damages or injunctions against ongoing infringement.

Alternative dispute resolution is increasingly relevant in France. The CMAP offers mediation and arbitration services for IP disputes. The World Intellectual Property Organization (WIPO) Arbitration and Mediation Center also handles cases with a French nexus. For domain name disputes involving French ccTLD (.fr) domains, the Association Française pour le Nommage Internet en Coopération (AFNIC) administers a specific dispute resolution procedure (SYRELI) that is faster and cheaper than court proceedings.

The business economics of enforcement decisions deserve careful analysis. A rights holder facing infringement of a trademark with annual French revenues of EUR 500,000 must weigh the cost of litigation (potentially EUR 50,000 to EUR 150,000 over two to three years) against the commercial impact of inaction (loss of market share, brand dilution, potential cancellation for non-use). In many cases, a well-drafted cease-and-desist letter, backed by credible litigation capability, produces a negotiated settlement without full proceedings.

A non-obvious risk is the boomerang effect of aggressive enforcement. French courts can award damages to defendants who successfully defend against unfounded IP claims, particularly where the claimant acted in bad faith or abused its dominant position. Rights holders with weak or overbroad claims should assess litigation risk carefully before filing.

To receive a checklist for IP enforcement strategy in France, send a request to info@vlo.com.

What is the most significant practical risk for a foreign business registering a trademark in France?

The most significant risk is failing to use the trademark genuinely in France within five years of registration. French law allows any interested party to apply for cancellation of a mark that has not been put to genuine use in France for five consecutive years. Genuine use means real commercial use in the French market - not token use designed solely to maintain the registration. Foreign businesses that register marks as part of a global portfolio but do not actively trade in France are particularly vulnerable. Maintaining use evidence - invoices, advertising materials, product samples - is essential from the outset.

How long does IP litigation in France typically take, and what does it cost?

A first-instance civil IP case before the Tribunal judiciaire de Paris typically takes 18 to 36 months from filing to judgment, depending on complexity and whether technical experts are appointed. An appeal to the Cour d'appel de Paris adds 12 to 24 months. Legal fees for a contested case start from the mid-five figures in euros for straightforward trademark disputes and can reach six figures for complex patent or trade secret litigation. Preliminary measures such as the saisie-contrefaçon can be obtained within days and are relatively affordable, making them a cost-effective first step before committing to full proceedings.

When should a business choose patent protection over trade secret protection for a technical innovation in France?

The choice depends on the nature of the innovation, the competitive landscape and the business model. Patent protection is appropriate when the innovation can be reverse-engineered from the product, when the business needs to license the technology to third parties, or when a strong defensive portfolio is strategically important. Trade secret protection is preferable when the innovation is difficult to reverse-engineer, when the business can maintain secrecy through robust internal controls, or when the cost and delay of patent prosecution are disproportionate to the commercial value. The key limitation of trade secrets is that they provide no protection against independent development or legitimate reverse engineering - a risk that patent protection eliminates for the duration of the patent term.

France provides a comprehensive and well-enforced intellectual property framework, anchored in the Code de la propriété intellectuelle and supplemented by EU-level instruments. The combination of civil, criminal and administrative enforcement tools gives rights holders significant flexibility, but effective protection requires proactive registration, genuine use, documented security measures and a realistic enforcement budget. International businesses entering the French market should treat IP strategy as a commercial priority, not an afterthought.

Our law firm Vetrov & Partners has experience supporting clients in France on intellectual property matters. We can assist with trademark and patent registration, copyright enforcement, trade secret protection, litigation strategy before the Tribunal judiciaire de Paris and alternative dispute resolution. To receive a consultation, contact: info@vlo.com.