Supreme Court allows patent priority claim by treating separate domestic and PCT filings as independent applications sharing the same priority date.

The Supreme Court of Poland overturned the Patent Office's refusal of priority rights, ruling that domestic and PCT applications must be treated as independent filings sharing the same priority date. The applicant argued that the Patent Office's interpretation of the domestic priority law violated international treaty obligations by failing to recognize the automatic equivalence of these filings. The Court held that since Polish law did not specify distinct consequences for internal priority reservations, both applications must be evaluated separately under the same priority date to comply with the Paris Convention and PCT. Consequently, the lower decisions were annulled, and the case was remanded for a new examination granting the priority claim.