
In the “Belkin v. Philips” decision (UPC_CoA_534/2024), the Court of Appeal of the Unified Patent Court has, for the first time across Europe, specified the conditions under which managing directors may be held personally liable for patent infringements. For company management, the ruling provides greater legal certainty—but also sets clear requirements for compliance and response obligations.
The decision by the Court of Appeal of the Unified Patent Court (UPC) in the “Belkin v. Philips” case provides, for the first time, Europe-wide clarity on the personal liability of managing directors in cases of patent infringement. This ruling is directly relevant to managing directors and board members of companies operating in the European single market.
Key Points of the Decision
The EPG Court of Appeals rejects the notion that managing directors are automatically personally liable for patent infringements committed by the company. Crucially, the mere fact of holding an executive position and fulfilling general management and organizational duties is not sufficient to establish personal liability. Liability may only be considered if the managing director
A key criterion is awareness of the illegality: The managing director must know—or, through gross negligence, willfully ignore—that a patent infringement has occurred. If the managing director seeks qualified legal advice and follows it, he or she is generally protected until a court of first instance issues a ruling.
In this specific case, the EPG-Court of Appeals ruled out personal liability on the part of Belkin’s managing directors because it could not be established that they had sufficient awareness of the illegality of their actions. Liability for failure to act, disclosure, and damages rested exclusively with the companies.
Implications for Practice and Compliance
For managing directors, the decision provides some relief, but it also sets a clear expectation for how the company is organized:
Analysis and Outlook
The decision by the EPG Appeals Court establishes a uniform, Europe-wide—and ultimately rather restrictive—standard of liability for managing directors. It is thus in line with previous German case law, but goes a step further in clarifying the protective mechanisms (legal counsel, compliance). For corporate practice, this means:
Conclusion:
The EPG Appeals Court’s “Belkin/Philips” ruling does not impose stricter requirements on managing directors; rather, it provides legal certainty and a clear framework for action. Those who prioritize compliance and seek professional advice are well protected—personal liability remains the exception for serious breaches of duty.

We are very pleased that our firm (Recognized Firm), as well as three of our managing partners (IP Star) and one “Rising Star,” have been recognized by Managing IP.
We are particularly pleased that this recognition confirms our consistently excellent work and the highest standards of quality in the field of intellectual property.
Many thanks to all our clients and colleagues who have contributed to this achievement and who so greatly appreciate our daily efforts.
Congratulations to Dr. Dorothea Hofer, Juergen Feldmeier, Dr. Christian Gärtner, and Sophia Steinmüller on their awards.


Handelsblatt and Best Lawyers have honored “Germany’s Best Lawyers 2026” and we are very pleased to have been mentioned here again. This award is based on surveys of commercial lawyers, so we would like to thank all our colleagues who have recommended us so highly.
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We are pleased to share that our firm Prüfer & Partner together with now seven of our intellectual property attorneys have been recognized for their outstanding work in patent prosecution and nullity in the newly published 2026 Edition of IAM Patent 1000, one of the world’s leading rankings with regard to patent services providers. We are particularly pleased that our colleague Dr. Christian Einsel has been included in this year’s edition for the first time.
What the ranking said
Prüfer & Partner
“The Prüfer & Partner team demonstrate a deep understanding of sophisticated technologies and delivers high-quality, cost-effective patent services with efficiency and consistency. Proactive, communicative and persistent in complex matters, the firm is well suited to long-term collaboration on global IP strategies.”
Jürgen Feldmeier
“Jürgen Feldmeier combines quick turnaround times with precise analysis and clear, practical recommendations, always maintaining a strong client focus. Supported by a strong technical background and deep knowledge of European patent law, he provides effective and well-judged strategic guidance.”
Dr. Dorothea Hofer
“Dorothea Hofer demonstrates a strong ability to understand complex technical matters, provide appropriate advice and manage urgent issues effectively. She assembles well-matched teams and leads a highly qualified, agile group. Collaboration is smooth and transparent, with clear communication on costs, teasibility and next steps.”
Dr. Andreas Oser
“Andreas Oser is highly effective at securing key patents under tight deadlines and complex conditions. He navigates challenging cases, including oral proceedings, with strong logical structuring and a thoughtful approach. Clear and responsive, he proactively identifies portfolio risks and opportunities.”
Markus Adamczyk
“Markus Adamczyk is described as “a bright and client-focued practitioner”. He brings genuine curiosity to his clients’ technologies, asking incistive questions to get to the heart of issues and deliver swift, effective solutions in infringement, nullity and EPO proceedings, particularly in computer-implemented inventions.”
Dr. Susanne Sonnenhauser
“Susanne Sonnenhauser builds long-standing client relationships grounded in trust. She supports life sciences and pharmeceutical industry leaders with precise drafting and prosecution, handles office actions and contentious proceedings, and delivers ongoing, astute strategic guidance.”
Dr. Christian Gärtner
“Christian Gärtner is a technically proficient patent attorney specialising in chemical engineering and materials science. He combines a detail-oriented approach with a human touch, producing clear, well-structured applications that support durable, long-term protection strategies.”
Dr. Christian Einsel
“Christian Einsel “delivers precise work and effective cooperation”. Drawing on decades of experience, he takes a pragmatic, solutions-driven approach to resolve issues swiftly and cost-effectively, combining strong drafting, licensing and litigation support with deep expertise in physics.”
About IAM Patent 1000
The prestigious ranking IAM Patent 1000, published by Globe Business Media Group in London, is commonly regarded as the definitive ‘go-to’ resource for those seeking to identify world-class, private practice patent expertise as well as leading patent service providers. IAM undertook an exhaustive qualitative research project to identify outstanding firms and individuals across multiple jurisdictions. When identifying the leading firms, factors such as depth of knowledge, market presence, and the level of work on which they are typically instructed were all taken into account, as well as positive peer and client feedback.

EU Regulation 2025/2645 was published in the Official Journal of the European Union on December 30, 2025, and entered into force directly in all member states on January 19, 2026, without the need for national implementing legislation. This means that, for the first time, a uniform EU system for compulsory licenses in crisis or emergency situations is now available.
How did this come about and what was the original idea?
Actually, an EU regulation (SEP Regulation 4-2023 (EUIPO)) was planned for patents that are indispensable for a technical standard (e.g., 5G, Wi-Fi), so-called SEPs (standard essential patents). This EU regulation was intended to create a transparency and licensing framework with SEP registration, essentiality checks, and more extensive “FRAND” mechanisms (fair, reasonable, and non-discriminatory terms).
However, the SEP Regulation failed miserably and was officially removed from the EU Commission’s work program in February 2025 because no agreement between member states and interest groups was foreseeable.
Strong objections came from large technology patent traders, among others, who argued that regulation would weaken incentives for innovation. Industry also opposed this regulation because it could not agree on the proposed mechanisms. There was also skepticism that the European Union Intellectual Property Office (EUIPO) in Alicante, Spain, which was to be established under this regulation, would have sufficient expertise. This is not surprising, as the EUIPO had previously been responsible exclusively for trademarks and designs and did not have any technically trained staff or experience in the field of SEPs.
But even though the SEP Regulation failed, it was part of a larger modernization project in the field of EU-wide intellectual property law.
Following the failure of the SEP Regulation, the EU undertook a strategic realignment and recognized that a functioning crisis IP instrument was urgently needed, especially since the Covid-19 pandemic.
Regulation 2025/2645, which has now entered into force, was therefore created as a more pragmatic measure focused on crisis management, with clear conditions and a limited scope of application, namely for crisis or emergency situations – unlike the more comprehensive but politically controversial SEP Regulation.
This new EU regulation now harmonizes the legal framework for compulsory licenses across the EU in crises, instead of relying on heterogeneous national systems.
Aim and purpose of the new regulation:
With the introduction of an EU-wide compulsory licensing system (“Union compulsory license”), the European Commission can now allow the use of patented technologies in exceptional crises or emergencies (e.g., health or supply crises) without the consent of the patent holder.
These compulsory licenses apply throughout the EU and no longer just nationally, so that cross-border supply chains can be secured in the event of a crisis.
Conditions for granting:
However, an EU-wide compulsory license may only be granted if:
1. a crisis or emergency mode has been activated under existing EU crisis mechanisms;
2. the use of the patent in question is necessary for the supply of crisis-relevant products;
3. all other options (especially voluntary license agreements) have been exhausted or do not lead to a solution in time;
4. the rights holder has been heard and given the opportunity to comment.
Key features of the system:
– Non-exclusive, time-limited (until the crisis is over) and non-transferable
– License fees (reasonable remuneration) must be paid for the use of the patented teaching, but may be refunded if a patent is not granted
– Products may not be exported—only within the EU
– Licensing is granted as a last resort
– An advisory committee accompanies the procedure
Practical development: How will Regulation 2025/2645 affect the market?
Short term (2026–2028):
The regulation is primarily intended to be a reserve instrument – it should only be activated in very serious crises.
It could become relevant for the first time, particularly in the areas of public health, medical care, and critical infrastructure.
It is hoped that companies and patent holders will strengthen mechanisms for early voluntary licensing in order to avoid a compulsory license imposed by the state.
Example:
Suppose there is a health crisis in the EU and a patent-protected active ingredient is crucial for a life-saving drug that only a single rights holder can supply. Since production cannot be ramped up quickly enough, the Commission activates the crisis mechanism and, after consulting the patent holder, grants an EU-wide compulsory license in accordance with Regulation 2025/2645. Several European manufacturers are allowed to produce the active ingredient for a limited period of time, pay a fixed fee to the patent holder, and thus ensure rapid supply to the population within the EU.
Medium term (2028–2032):
In the medium term, standard processes for the European Commission and advisory boards are to be developed, including procedural standards and evaluation methods for appropriate remuneration.
In many cases, the regulation will act as a “failsafe,” strengthening the EU’s negotiating power in licensing issues during crises, without, however, being used automatically on a massive scale.
Patent holders will be more willing to offer FRAND license agreements at an earlier stage in complex situations in order to prevent impending compulsory licenses.
Long term (2033+):
The EU could use this crisis compulsory licensing regime as a basis for developing further IP coordination mechanisms, e.g., in areas such as climate protection technologies or critical digital standards.
There could be a political debate on further SEP or FRAND reforms that apply outside of crises, based on lessons learned from the failed SEP regulation attempt.
Conclusion:
EU Regulation 2025/2645 is not an SEP regime – it serves a very specific purpose: EU-wide compulsory licenses only in clearly defined crisis situations.
The originally planned SEP regulation has been completely abandoned.
The new regulation is more of a crisis prevention tool, designed to make IP practice in the EU more stable, coordinated, and predictable in the long term, especially in emergency situations.

Our managing partners Dr. Dorothea Hofer and Jürgen Feldmeier have been named IAM Global Leaders 2026!
We are delighted to receive this special award and would like to thank everyone involved.

Handelsblatt and Best Lawyers have honored “Germany’s Best Law Firms 2025” and we are very pleased to have been mentioned here again. This award is based on client feedback and colleague votes, so we would like to express our sincere thanks to all our colleagues and clients who recommended us in such large numbers.
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On June 18, 2025, the Enlarged Board of Appeal of the European Patent Office published its decision in G1/24 (“Heated Aerosol”) – a decision with significant implications for the future interpretation of European patent claims. The guiding principle is clear: claims must always be interpreted in the light of the description and drawings – not only if the wording is unclear (para. 18.).
The EPO is thus fundamentally changing its previous practice and moving closer to the line taken by the Unified Patent Court (UPC) and German courts. The Enlarged Board of Appeal expressly clarifies that an isolated interpretation of the patent claim based purely on the wording – as was advocated in T 169/20, for example – is neither practicable nor desirable.
Starting point: referral T 439/22 – from individual case to system change
The decision was prompted by a referral from the Technical Board of Appeal 3.2.01 (T 439/22). The issue in dispute was whether a definition of a term in the description – in this case the term “gathered sheet” – influences the interpretation of the claim, even if the claim is clearly formulated in terms of language.
The answer of the Enlarged Board of Appeal is clear: Yes, the description must always be used. The “claims-only” approach previously advocated in some cases is now a thing of the past. The EPO is thus committed to a holistic, context-related interpretation – a step towards greater legal certainty and uniformity in Europe.
What does this mean in practice?
The effects for patent applicants and us patent attorneys are immediately noticeable:
– Consistency between description and claims is more important than ever – inconsistencies can have a direct impact on claim interpretation.
– Examination procedures could also change: EPO examiners are likely to analyze claims more in the context of the description in the future.
– Third parties – e.g. competitors – will have new points of attack if the description contains inconsistencies with the claims.
Consequence:
Amendments to the description during examination must be approached with even more care, as inadequate adjustments can quickly lead to problems with Article 123(2) EPC.
Classification in the European context: Alignment with the UPC and national practice
The UPC already follows the now confirmed approach in decisions such as NanoString v. 10x Genomics: Here too, the context of the description is used to interpret the claim – with the aim of achieving a uniform scope of protection in all member states.
German courts also traditionally rely heavily on the description, but often interpret it in light of the technical purpose. The approach is therefore often more function-oriented than the EPO’s previously more text-oriented approach – which can sometimes result in more far-reaching interpretations.
Conclusion:
G1/24 creates a degree of clarity and harmonization here. The decision strengthens harmonization within Europe and improves the predictability of claim interpretation for all parties involved – a welcome step for European patent practice as a whole.

Handelsblatt and Best Lawyers have honored “Germany’s Best Lawyers 2025” and we are very pleased to have been mentioned here again. This award is based on surveys of commercial lawyers, so we would like to thank all our colleagues who have recommended us so highly.
Click here for the article.
We are pleased to share that our firm Prüfer & Partner together with six of our intellectual property attorneys have been recognized for their outstanding work in patent prosecution and nullity in the newly published 2025 Edition of IAM Patent 1000, one of the world’s leading rankings with regard to patent services providers. We are very proud and honored that our next generation managing partners Dr. Susanne Sonnenhauser and Dr. Christian Gärtner were also listed for the first time.
What the ranking said
Prüfer & Partner
“A reliable firm providing quality patent prosecution advice…appreciated for their responsiveness, cost-effective approach and overall excellent client service.”
Jürgen Feldmeier
“Jürgen Feldmeier is a responsive and highly professional practitioner with a deep understanding of his clients’ technologies. This means he provides careful and accurate opinions, as well as valuable advice on patent applications and portfolio management, and defence strategies that are tailored exactly to his customers’ needs.”
Dr. Dorothea Hofer
“Dorothea Hofer has the ability to understand complex technical matters and provide the appropriate advice. She is a great attorney, capable of dealing with urgent matters through putting together strong teams to tackle important cases.”
Dr. Andreas Oser
“Andreas Oser carefully drafts patent applications and provides helpful advice on handling proceedings at the patent office. He devises cost-efficient strategies, highlighting the risks and challenges of each option, and selecting the most suitable path depending on his clients’ needs.”
Markus Adamczyk
“Markus Adamczyk, a dual-qualified patent attorney and attorney-at-law, sees issues from every angle to dispense valuable holistic counsel. He works seamlessly with his clients to masterfully protect and enforce their rights.”
Dr. Susanne Sonnenhauser
“Susanne Sonnenhauser is adept at working with groundbreaking technologies and companies whose patents are central to their success; unflappable under pressure, she operates with precision and the utmost care at each turn.”
Dr. Christian Gärtner
“Christian Gärtner is an impressive strategist who devotes his practice to achieving meaningful patent protection for his clients. He gets to know their businesses incredibly well and tailors his advice to suit their needs.”
About IAM Patent 1000
The prestigious ranking IAM Patent 1000, published by Globe Business Media Group in London, is commonly regarded as the definitive ‘go-to’ resource for those seeking to identify world-class, private practice patent expertise as well as leading patent service providers. IAM undertook an exhaustive qualitative research project to identify outstanding firms and individuals across multiple jurisdictions. When identifying the leading firms, factors such as depth of knowledge, market presence, and the level of work on which they are typically instructed were all taken into account, as well as positive peer and client feedback.