EPO Oppositions – Strategy, Procedure And Practical Insights (Video) – Trademark

On Aug 3, 2026

J A Kemp LLP

J A Kemp is a leading firm of European Patent and Trade Mark Attorneys. We combine independent thinking with collective excellence in all that we do.

The technical and legal knowledge that we apply to the protection of our clients’ patents is outstanding in its breadth and depth. With around 100 science and technology graduates in the firm, including 50 PhDs, no area of science or technology is outside our scope. Our Patent Attorneys have collective in-depth expertise in patent law and procedure in every country of the world.

The team of professionals who advise our clients on trade mark and design matters have backgrounds in major international law firms and hold qualifications as Chartered UK Trade Mark Attorneys, Solicitors and European Trade Mark Professional Representatives. Dedicated to this specialist area of intellectual property protection, the team has the expertise and resources to protect trade marks and designs in any market worldwide.

EPO oppositions remain one of the most powerful tools for challenging the validity of a European patent after grant. They offer a centralised and cost-effective route to attack any European patent with effect across…

United States
Intellectual Property

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In this webinar, J A Kemp’s experienced European patent attorneys provide practical insights into EPO opposition practice and potential procedural pitfalls to guard against or exploit, drawing on their extensive experience in both attacking and defending patents before the EPO.

Topics covered include:

The initial opposition and defence – how to best set up your case

Amendments and auxiliary requests – how many is too many?

Adding to your case – when to do it and navigating the “late-filed” problem

Strategies for maximising flexibility on appeal

Why a good defence starts during prosecution

Whether you are considering opposing a competitor’s patent, defending your own portfolio, or handling applications with a future opposition risk, this webinar provides practical guidance on navigating EPO opposition proceedings with confidence.

J A Kemp LLP acts for clients in the USA, Europe and globally, advising on UK and European patent practice and representing them before the European Patent Office, UKIPO and Unified Patent Court. We have in-depth expertise in a wide range of technologies, including Biotech and Life Sciences, Pharmaceuticals, Software and IT, Chemistry, Electronics and Engineering and many others. See our website to find out more.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

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