On October 10, 2023, the Enlarged Board of Appeal of the European Patent Office (EPO) issued a remarkable decision that redefines the assessment of formal priority at the EPO during examination and in post-grant opposition proceedings. This shift in approach stands to favor applicants and patentees. The decision is an unexpected development in the process of protecting patent priority dates in Europe.
The decision essentially provides a rebuttable presumption in favor of the patentee or applicant’s declared priority right. This upticks the significance of formal priority during patent examination and post-grant opposition proceedings, tilting the scales towards patentees and applicants.
As this decision is implemented, it is reasonable to predict corporations and large law firms handling intellectual property law in Europe will need to take a refreshed view on retaining their patent priority date. Key factors, such as the draft and filing of patent applications, their prosecution, and opposition strategies will likely require revisiting and updating to align with the new considerations.
The EPO’s verdict is a meaningful step in assuring that the rights and interests of the patentees and applicants are safeguarded and given due importance during patent proceedings. This policy efficiently reaffirms the belief in legal certainty and predictability while dealing with patent priority rights.
This decision, in favor of applicants and patentees, signals a significant shift in the European patent landscape, raising questions and opportunities for everyone involved in the patent process.
For a complete understanding of the EPO’s decision, and to assess its potential impact, click here to read the full judgment.