IP and Patents: Protection and Enforcement in Germany

IP and patents in Germany: an overview

Germany is one of Europe's most important venues for protecting and enforcing IP and patents. Its regional courts hear a large share of European patent infringement cases, four local divisions of the Unified Patent Court (UPC) sit in German cities, and the German Patent and Trade Mark Office (Deutsches Patent- und Markenamt, DPMA) in Munich administers national patents, utility models, trade marks and designs. For innovators and brand owners, the German system offers fast, technically competent courts, strong injunctive relief and a dense body of case law. It also has distinctive features, notably the separation of infringement and validity proceedings, that shape strategy from the first filing.

This page sets out the main rights, how they are obtained and enforced, and where the law is changing. Our work covers four connected areas: patent litigation in Germany before the national courts; litigation before the Unified Patent Court and the Unitary Patent; trademarks, designs and brand protection; and the commercial side of IP, including licensing, trade secrets, copyright and transactions.

The main IP rights and how long they last

German IP law combines national statutes with EU regulations and international conventions. Several rights can protect the same product: a machine may be covered by a patent, a utility model, a registered design for its appearance, a trade mark for its name and trade secrets for its manufacturing process. Choosing the right combination is a business decision as much as a legal one, and it should reflect how competitors in the sector typically copy or design around products.

Utility models deserve special mention. They are registered quickly without examination of novelty or inventive step, which makes them a useful enforcement tool when a patent application is still pending. A utility model can be branched off from a pending patent application while keeping its filing date. Our note on utility models in Germany explains when this route makes sense.

Filing and portfolio strategy

Effective protection starts long before any dispute. For technical inventions, applicants choose between a German patent application at the DPMA, a European application at the EPO, or both. German applications are published 18 months after the filing or priority date, and the applicant may request substantive examination up to seven years after filing (§ 44 PatG), which allows costs to be deferred while the commercial value of the invention becomes clearer.

A European patent, once granted, can be validated nationally or given unitary effect for the participating EU Member States; the request for unitary effect must be filed with the EPO within one month of the publication of the mention of grant.

Third parties can attack a granted patent by opposition within nine months of the publication of grant, both at the DPMA (§ 59(1) PatG) and at the EPO. Opposition is cheaper than a nullity action and is often the first line of defence for competitors who monitor patent publications in their field. Companies with significant R&D should therefore run a structured monitoring programme and decide quickly whether to oppose.

For brands, the portfolio question is whether to rely on German trade marks, EU trade marks or a combination. An EU trade mark covers all Member States in one registration but is vulnerable to a single conflicting earlier right anywhere in the EU. German trade marks give a stable national basis and can be useful as a fallback. Designs follow a similar logic, with the added option of relying on unregistered protection for short-life products. Filing decisions should be aligned with the markets the business actually serves and with its enforcement budget.

Portfolio management is an ongoing task. Renewal fees, use requirements and changes in the product range mean that rights should be reviewed periodically, pruned where they no longer serve a purpose and supplemented where new products or markets require protection.

Enforcing IP and patents in Germany

Enforcement of IP and patents in Germany rests on a set of claims that are broadly similar across the different rights: injunctive relief, damages, information about the origin and distribution channels of infringing goods, recall and destruction, and publication of the judgment. For patents, the injunction claim is in § 139(1) PatG, damages in § 139(2) and information in § 140b PatG. Damages may be calculated on the basis of the claimant's lost profit, the infringer's profit or a reasonable licence fee.

National courts and the bifurcated system

Patent infringement cases, together with all other claims arising under the Patent Act, go to specialised chambers at the regional courts (Landgerichte), which the federal states may concentrate at selected courts (§ 143 PatG).

Validity is decided separately: by the Federal Patent Court (Bundespatentgericht) in nullity actions (§ 81 PatG), or by the DPMA or EPO in opposition proceedings. The infringement court will stay its proceedings only if it considers revocation highly likely. This bifurcation creates the so-called injunction gap, which our insight on the injunction gap analyses. Since 2021, § 139(1) PatG has expressly allowed the injunction to be excluded where it would cause disproportionate hardship, with monetary compensation instead; the threshold for this exception is high, and courts have applied it sparingly.

The Unified Patent Court

Since 1 June 2023, the UPC has offered a single procedure for European patents and Unitary Patents across the participating EU Member States. The state government of North Rhine-Westphalia confirmed at the launch that local divisions sit in Düsseldorf, Hamburg, Mannheim and Munich, with a section of the central division in Munich and the Court of Appeal in Luxembourg. The UPC decides infringement and validity together, can grant injunctions with effect across all participating states and has quickly built its own body of case law. Patentees now choose between national courts and the UPC; defendants face the possibility of a central revocation action or counterclaim.

Evidence and preliminary relief

German law gives rightholders tools to secure evidence before or during proceedings. Where infringement is sufficiently likely, the patentee can demand inspection of a device or process, or production of documents (§ 140c PatG), often combined with an independent evidence procedure under the Code of Civil Procedure and a court-appointed expert. Confidentiality is protected by restricting access to the expert's report. Preliminary injunctions are available in patent cases where the matter is urgent and validity is sufficiently secure, typically after an opposition or nullity decision has upheld the patent. In trade mark, design and unfair competition matters, preliminary injunctions are a routine tool and can be obtained within days.

Border measures and anti-counterfeiting

Customs authorities can detain goods suspected of infringing IP rights on the basis of Regulation (EU) No 608/2013. An application for action is free of charge and, once granted, allows customs to stop suspected shipments at the EU's external border. National rules, such as § 142a PatG and § 146 MarkenG, cover cases outside the regulation's scope. A coordinated customs strategy, combined with online notice-and-action tools, is the backbone of any anti-counterfeiting programme.

Patent litigation and the UPC

Our patent litigation page explains infringement actions before the Munich, Düsseldorf and Mannheim regional courts, nullity actions before the Federal Patent Court, the proportionality defence under § 139 PatG, damages and border measures. Our Unified Patent Court page covers the four German local divisions, the central division, long-arm jurisdiction after the CJEU's BSH v Electrolux judgment, provisional measures, opt-out strategy and SEP/FRAND cases.

The choice of forum has become one of the most important strategic decisions in European patent enforcement.

National German proceedings remain attractive for patentees who want a German injunction quickly and who expect the validity challenge to take longer. UPC proceedings offer multi-country relief from one court but expose the patent to central revocation. Since the CJEU's Grand Chamber ruled in BSH Hausgeräte (CJEU, judgment of 25 February 2025, BSH Hausgeräte, C-339/22) that a court of the defendant's domicile may hear infringement claims relating to foreign patents even where validity is challenged, cross-border enforcement from a single court has become more attractive, both in national courts and at the UPC.

Standard-essential patents (SEPs) are a particular focus. German courts and the UPC apply the framework set by the CJEU in Huawei v ZTE, and the Federal Court of Justice (Bundesgerichtshof, BGH) has developed demanding requirements for implementers who want to raise a FRAND defence. See our analysis of SEP and FRAND disputes in Germany and the UPC.

Trademarks, designs and brand protection

Our trademarks and designs page covers clearance, filing strategy, oppositions, cancellation, enforcement, customs seizures, domain names and geographical indications. Brand owners can register German trade marks at the DPMA or EU trade marks at the EUIPO, or extend international registrations to Germany and the EU. Oppositions must be filed within three months of publication, both for German trade marks (§ 42(1) MarkenG) and for EU trade mark applications (Article 46(1) of Regulation (EU) 2017/1001).

Trade mark clearance before launch should cover registered marks, company names, domain names and protected geographical indications, because each of these can block use in Germany.

Two reforms deserve attention. The EU design law reform turned the registered Community design into the registered EU design; Regulation (EU) 2024/2822 has applied since 1 May 2025, with further provisions applying from 1 July 2026, and Member States must transpose the recast Design Directive (EU) 2024/2823 by 9 December 2027. Separately, Regulation (EU) 2023/2411 has protected geographical indications for craft and industrial products since 1 December 2025, which matters for regional product names in Germany. See our insights on the EU design reform and on geographical indications.

Enforcement of trade marks in Germany usually begins with a warning letter (Abmahnung) demanding a cease-and-desist declaration backed by a contractual penalty. If the recipient refuses, the rightholder can apply for a preliminary injunction, provided it acts promptly after learning of the infringement; a delay of several weeks can undermine urgency, and practice differs between courts.

Defendants who expect to be targeted can file a protective letter in the central electronic register, which the courts consult before deciding without a hearing. In infringement actions, the defendant can counter with a non-use defence or a cancellation request, which makes good evidence of genuine use essential for the trade mark owner.

Licensing, trade secrets, copyright and transactions

IP and patents generate value through use, not only through enforcement. Commercial IP work in Germany typically involves:

• Licensing and technology transfer: patent and know-how licences, R&D collaborations and cross-licences, structured to comply with EU competition law, including the revised Technology Transfer Block Exemption Regulation. See technology transfer and patent licensing.
• Employee inventions: the Employee Inventions Act (Arbeitnehmererfindungsgesetz, ArbnErfG) gives employees a statutory right to compensation for service inventions claimed by the employer, which cannot be waived in advance to their detriment. See employee inventions.
• Trade secrets: information is protected under the Trade Secrets Act only if it is subject to reasonable secrecy measures (§ 2 no. 1 GeschGehG). Courts can order confidentiality measures in patent cases (§ 145a PatG) and in civil proceedings generally.
• Copyright and AI: software, databases and creative works are protected under the UrhG. Text and data mining is permitted for lawfully accessible works unless the rightholder has reserved this use in a machine-readable form for online works (§ 44b UrhG), a rule of growing importance for AI training.
• Transactions: IP due diligence, chain-of-title review and the drafting of IP warranties in M&A, financing and carve-outs.

Unfair competition, advertising and digital IP issues

IP protection in Germany is complemented by the Act against Unfair Competition (Gesetz gegen den unlauteren Wettbewerb, UWG), which protects against misleading advertising, imitation of products in certain circumstances and other unfair practices. Competitors and certain associations can enforce the UWG by warning letters and interim injunctions, which German courts grant quickly in urgent cases. The UWG is often combined with trade mark and design claims in brand protection cases. Our note on unfair competition law basics gives an overview.

Online enforcement has its own toolkit. The Digital Services Act gives rightholders notice-and-action mechanisms against illegal content on platforms, and marketplaces must act on substantiated notices. Domain disputes concerning .de domains are decided by the civil courts, supported by DENIC's dispute entry procedure, while other domains can be pursued through administrative procedures such as the UDRP. AI-generated content raises new questions on authorship and the protection of outputs, which German courts and the legislator are only beginning to answer.

For businesses, the practical consequence is that IP and patents strategy can no longer be separated from digital regulation. Product launches, marketing campaigns and the use of AI tools should be reviewed for IP, unfair competition and platform law issues at the same time, ideally with a single checklist that the legal, marketing and product teams share.

How TRW & Co helps

We advise innovators, manufacturers, technology companies and brand owners on IP and patents in Germany and across Europe. We conduct patent infringement and nullity proceedings, act before the UPC, and coordinate cross-border enforcement. We build and defend trade mark and design portfolios, run oppositions and anti-counterfeiting programmes, and draft licence, R&D and technology transfer agreements. We also advise on trade secret protection, employee inventions and IP in transactions.

We work closely with patent attorneys on technical questions and with your R&D, product and marketing teams on how IP is created, documented and used. For companies new to Germany, we explain the warning-letter culture and help set up a response process. To discuss a matter, please contact us. This page is general information and not legal advice.