AIPPI World Congress 2026 Brings Global IP Leaders to Hamburg to Address AI and Patent Law Challenges

The 2026 World Congress of the International Association for the Protection of Intellectual Property (AIPPI) convened international experts to examine legal questions affecting patents, trademarks, copyright and designs.Held at the Congress Center Hamburg, the event combined formal study committee meetings, plenary discussions, professional development sessions and networking. AIPPI brings together legal practitioners, academics, judges and corporate IP specialists to discuss ways to improve intellectual property protection and encourage greater consistency between national legal systems.The Congress took place as technological development and international commerce continue to complicate how inventions, creative works and brands are protected. Companies increasingly develop products across borders, manufacture components in one jurisdiction and sell them in another. Meanwhile, digital platforms and AI systems are creating new questions about ownership, infringement and enforcement.

Artificial Intelligence Challenges Established Patent Principles

Artificial intelligence was a central subject of discussion, particularly during a high-level roundtable on October 7 featuring leaders from major European and international IP institutions.Participants included European Patent Office President António Campinos, German Patent and Trade Mark Office President Eva Schewior, Unified Patent Court President Klaus Grabinski and Tanuja Garde of the World Trade Organization Secretariat. The discussion considered how AI affects patent examination, inventorship, inventive step, disclosure requirements and the emergence of AI-generated prior art.These questions have practical consequences. Patent systems generally assess whether an invention is new, involves an inventive step and meets other legal requirements. As AI tools become more capable of generating technical solutions and assisting research, authorities must determine how existing legal principles apply to work created with significant machine involvement.The discussion did not suggest that established patent law must be discarded. Campinos emphasised that the European patent framework has adapted to decades of technological change. The challenge is to clarify how existing principles apply to AI-related inventions while preserving predictability for researchers, businesses and patent applicants.AI is also being introduced into patent-office operations, including classification, search and translation. The EPO’s position is that these tools can support examiners, but human expertise and responsibility remain central to substantive decisions.

International Patent Harmonisation Remains a Priority

Despite international cooperation, intellectual property rights remain substantially territorial. Patent protection granted in one jurisdiction does not automatically provide identical protection everywhere, and differences in national law can complicate international business strategies.AIPPI’s formal harmonisation programme provides a forum for national groups to compare legal approaches and develop common recommendations. At the 2026 Congress, patent discussions included divisional applications and double patenting.A divisional patent application allows an applicant to pursue an invention disclosed in an earlier application through a separate application, subject to applicable legal requirements. Double patenting concerns the circumstances in which overlapping patent rights may be granted for the same subject matter.The debate illustrates why harmonisation is difficult: countries may share an objective while differing over the legal tests and procedures used to achieve it. AIPPI’s work seeks to identify areas where more consistent approaches could make the system easier to navigate.

Enforcement and Cross-Border Disputes

Enforcement was another important theme. Online infringement, cross-border litigation and the gathering of evidence can create challenges when the parties, technology and commercial activity span multiple countries.The Congress programme also addressed dynamic blocking injunctions, online infringement and geo-blocking, as well as contributory infringement and expert evidence in patent disputes.Dynamic blocking injunctions can allow certain court orders to respond to changing online locations used to distribute infringing material, subject to the relevant legal framework. Geo-blocking, meanwhile, raises questions about how access to digital content or services is restricted according to geographic location.These issues demonstrate that effective enforcement involves more than identifying an infringement. Courts and rights holders must also consider jurisdiction, evidence, proportionality and the potential effect of remedies on legitimate activity.

Why the Discussions Matter for Innovators and Businesses

The Congress’s themes have implications for businesses, universities, research institutions and independent inventors.For companies operating internationally, differing patent rules and enforcement procedures can increase the complexity of product launches, licensing arrangements and litigation strategies. Greater legal consistency could make it easier to assess risks and plan where to seek protection, although international harmonisation remains an ongoing process rather than a completed achievement.For AI developers and organisations using AI in research, questions around inventorship, disclosure and prior art are increasingly relevant to patent strategy. Clearer guidance can help applicants understand how to document contributions and evaluate whether a technical development meets the applicable standards.For smaller businesses and research teams, accessible procedures and predictable enforcement can influence whether they pursue patent protection or commercialise their inventions. However, the actual impact depends on the laws adopted by individual jurisdictions and how courts and patent offices apply them.

A Forum for Future IP Policy

The AIPPI World Congress is not a global legislature and does not itself create binding patent law across countries. Its study committees and resolutions contribute professional analysis and recommendations that may inform future discussions among policymakers, courts and legal institutions.The 2026 meeting in Hamburg highlighted a continuing tension: innovation and infringement increasingly cross borders, while legal authority and intellectual property rights remain shaped by specific jurisdictions.As AI develops and international technology markets become more interconnected, the work of harmonising rules, strengthening enforcement and maintaining confidence in patent systems is likely to remain central to global intellectual property policy.

FAQs

1. What was the AIPPI World Congress 2026?

It was an international intellectual property conference held in Hamburg, Germany, from October 7–10, bringing together legal professionals, judges, policymakers and industry representatives.

2. What were the main topics discussed?

Key subjects included AI and patent law, international patent harmonisation, divisional applications, double patenting, cross-border litigation and online infringement.

3. Why is artificial intelligence challenging patent law?

AI raises questions about inventorship, inventive step, disclosure and how AI-generated technical material should be treated during patent examination.

4. Does AIPPI create binding international patent laws?

No. AIPPI is a professional association that studies intellectual property issues and develops resolutions and recommendations. Binding legal rules are established through the relevant legislative and legal processes.

5. How could the Congress’s work affect businesses and inventors?

Its discussions and recommendations may contribute to clearer legal approaches and more consistent IP protection. Any practical effect depends on how relevant jurisdictions adopt or apply those approaches.