EBA: Narrows G 1/25 Description Adaptation Requirement Scope

• The Enlarged Board of Appeal issued its G 1/25 decision yesterday, redefining description adaptation requirements.
• Description adaptation is now mandatory only if an inconsistency between claims and description causes non-compliance with another EPC requirement.
• The EBA grounds this adaptation requirement in a relevant provision of the European Patent Convention.
• The decision includes the EBA's definition of "inconsistency" by reference.

The Enlarged Board of Appeal has yesterday issued its highly anticipated G 1/25 decision, fundamentally altering the landscape for the G 1/25 description adaptation requirement within the European patent system.

The Enlarged Board of Appeal (EBA) has yesterday issued its highly anticipated G 1/25 decision, fundamentally altering the landscape for the G 1/25 description adaptation requirement within the European patent system. This pivotal ruling establishes a significantly narrower scope for when patent descriptions must be modified. Specifically, the decision mandates that adaptation of the description is required exclusively in instances where an EPC description inconsistency between the claims and the description directly leads to non-compliance with a separate, distinct requirement of the European Patent Convention (EPC). This precise condition represents a critical shift, moving away from potentially broader interpretations of when such modifications were previously deemed necessary. The ruling underscores a more targeted approach to ensuring claims description consistency, emphasizing that not every divergence will automatically trigger a demand for adaptation.

The Enlarged Board of Appeal, recognized as the highest judicial authority within the European Patent Office, has provided explicit clarity regarding the legal foundation for this revised EU patent description adaptation standard. The EBA asserts that the legal basis for requiring description adaptation can be found directly within a relevant provision of the European Patent Convention itself, thereby grounding the requirement firmly in statutory text. Crucially, the G 1/25 EBA decision also addresses the definition of "inconsistency," a term central to its holding. The EBA has chosen to define this key concept by reference, indicating a structured and specific approach to its interpretation rather than leaving it open to broad discretion. This definitional clarity is vital for both patent examiners and applicants in understanding the precise boundaries of the new rule.

This landmark G 1/25 EBA decision introduces a more rigorous framework for ensuring claims description consistency, placing a heightened onus on patent applicants and their legal representatives. The ruling implies that simple discrepancies or minor inconsistencies between the claims and the detailed description will no longer automatically trigger a demand for adaptation, unless those inconsistencies directly cause a failure to meet another EPC requirement. This means that examiners will likely focus their objections more acutely on substantive inconsistencies that genuinely undermine the patent's compliance with other aspects of the Convention, such as clarity, support, or sufficiency of disclosure. Consequently, applicants must now meticulously review their applications, not just for consistency, but also to proactively identify and rectify any EPC description inconsistency that could lead to non-compliance with other EPC stipulations, thereby impacting the G 1/25 description adaptation requirement and potentially the patent's validity. This shift necessitates a more strategic and precise approach to drafting and prosecuting patent applications.

Patent attorneys and applicants must now meticulously review patent applications to ensure descriptions are fully consistent with claims, as the Enlarged Board of Appeal's G 1/25 decision significantly tightens the criteria for description adaptation, potentially leading to more objections and a stricter standard for compliance with the EPC.

Source: Original reporting via legal news outlets.