Will the EPO’s Enlarged Board of Appeal step into the CRISPR patent battle?

By  Jakob Wested, Timo Minssen & Esther van Zimmeren

Another version of this contribution has been published in Life Science Intellectual Property Review (LSIPR).

The Broad Institute is facing a formidable task in defending the revoked CRISPR patent claims in their pending appeal at the European Patent Office (EPO). Ultimately, some of the issues might still be referred to the Enlarged Board of Appeal. However, this might require a significant amount of legal and rhetorical agility.

“The Opposition Division’s interpretation of the EPC [European Patent Convention] is inconsistent with treaties designed to harmonize the international patent process, including that of the United States and Europe.”

This was the rather strong reaction of the Broad Institute after the EPO’s Opposition Division’s (OD) decision to revoke one of their CRISPR patents. It could, however, also be argued that the case presents a simple failure of the patent applicants to comply with the long-standing European practice to apply an “all applicants” approach when claiming priority under article 87 of the European Patent Convention.

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