Belgian courts have quietly tightened how they assess intellectual property disputes. International businesses that registered marks or filed infringement claims under older procedural assumptions may now find those positions harder to maintain. The shift is not confined to one area – it touches trademark application outcomes, opposition proceedings, and the remedies available when an infringement claim reaches court. Companies without an updated enforcement strategy face real exposure: delays in obtaining injunctions, weakened damages claims, and the risk of seeing a mark cancelled before it can be defended.
Belgian intellectual property legislation has been reinforced by a series of court-practice changes that affect how rights holders pursue IP registration, challenge infringing use, and recover losses. Businesses with active trademark portfolios or pending opposition proceedings in Belgium should audit their positions by the end of the first quarter of 2026. Failure to act before that window closes risks procedural bars that are difficult to reverse.
This alert sets out what has changed, which business categories are directly affected, and the five immediate actions international companies should take now.
What has changed in Belgian IP enforcement practice
Belgian courts handling IP disputes operate under a dual layer of authority. National intellectual property legislation applies alongside EU-derived rules on saisie-description (a Belgian procedural tool allowing rights holders to gather evidence of infringement before trial). Recent court practice has raised the evidential bar for granting a saisie-description order. Judges now scrutinise the specificity of the infringement claim with greater rigour. A generic assertion of copying or passing-off is unlikely to succeed without detailed prior evidence of infringing acts.
On the trademark side, opposition proceedings before the Benelux Office for Intellectual Property (BOIP) have seen procedural timelines tightened. The BOIP is the competent authority for trademark application filings across Belgium, the Netherlands, and Luxembourg. Opposition deadlines, once treated with some flexibility, are now applied strictly. A missed response window in opposition proceedings is treated as abandonment – without any automatic right of reinstatement.
Courts have also shifted their approach to Nice classification (the international system that categorises goods and services for IP registration purposes). Judges increasingly refuse to interpret a trademark registration broadly across a class where actual commercial use is confined to a narrow sub-category. A mark registered across an entire Nice class but used only in one segment of that class is now at risk of partial cancellation on non-use grounds. This directly affects the scope of any infringement claim the rights holder can bring.
Finally, Belgian civil courts have adopted a more demanding standard for quantifying damages in IP cases. Rights holders must now provide evidence-based estimates of lost profits or reasonable royalty rates. Courts are less willing to apply global approximations. Businesses that rely on statutory minimum damages should note that this floor may not adequately compensate where actual losses are substantial.
Who is affected and what to do now
The following business categories face the most immediate exposure:
- Companies with Benelux trademark registrations that have not verified their use evidence in the past three years
- Businesses currently engaged in, or contemplating, opposition proceedings before the BOIP
- Rights holders who have relied on broad Nice classification coverage to block competitors
- Technology companies with AI-generated content strategies that implicate copyright or design rights in Belgium – for those with specific concerns at the intersection of technology and IP, our analysis of AI and technology law in Belgium addresses related compliance issues
- International groups whose Belgian subsidiary holds the IP but whose enforcement decisions are made centrally in another jurisdiction
To receive an expert assessment of your IP enforcement position in Belgium, contact us at info@ferrazwhitmore.com.
Businesses in the categories above should take five immediate steps. First, audit all active Benelux trademark registrations against actual commercial use. Identify any mark where use is narrower than the registered Nice classification scope. Second, review pending opposition proceedings for compliance with the current BOIP procedural calendar. Confirm that all response deadlines are calendared and that no window has already been missed. Third, prepare or update a use-evidence file for each commercially significant mark. This should include dated sales records, marketing materials, and invoices that demonstrate genuine commercial use in Belgium specifically. Fourth, recalibrate any pending or planned infringement claims. If the claim rests on a broad trademark registration that may be vulnerable to partial cancellation, obtain a freedom-to-operate assessment before filing. Fifth, instruct Belgian counsel to review any existing saisie-description applications for sufficiency of the underlying evidence. An application that would have succeeded under earlier practice standards may require supplementation.
Companies operating across the Benelux region should also cross-reference their Belgian strategy with their broader EU IP portfolio. A mark held through an EU trademark registration does not automatically avoid the Belgian use-evidence scrutiny when Belgian courts assess infringement scope. The practical compliance deadline for portfolio reviews is the end of the first quarter of 2026. Rights holders whose marks come up for renewal or whose opposition windows fall within that period have the most pressing need for immediate action. For comparable enforcement shifts in another civil law jurisdiction, our alert on IP enforcement developments in Portugal provides useful context on how Iberian courts are handling similar questions.
About Ferraz & Whitmore
Ferraz & Whitmore is an international law firm based in Lisbon, advising clients across 46 jurisdictions on intellectual property protection, enforcement strategy, and cross-border IP portfolio management. Our IP practice covers trademark application, opposition proceedings, infringement claims, and IP registration across EU and non-EU markets. The firm's Belgian IP work is led through our intellectual property practice. This combines Portuguese civil law expertise with English common law tradition. giving clients a coherent enforcement strategy across both civil law and common law systems. For international businesses seeking a lawyer in Belgium with cross-border IP experience, or a law firm in Belgium capable of coordinating multi-jurisdiction trademark portfolios, Ferraz & Whitmore provides integrated counsel across the full enforcement lifecycle. Our attorneys have advised rights holders in proceedings before the BOIP and before Belgian civil courts. To discuss how these recent shifts affect your IP position in Belgium, reach out to us at info@ferrazwhitmore.com.
For a comprehensive overview of the firm's intellectual property services in Belgium, see our IP law practice in Belgium.
Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.