Challenges to the validity of the “Patent Cooperation Treaty joint applicant” have been a problem for many applicants at the European Patent Office. On October 10, 2023, the EPO’s highest authority, the Enlarged Board of...more
On 30 July, the Court of Appeal of The Hague ruled on the formal entitlement to priority following from a US provisional patent application. The attack on priority in this case is part of a recent trend by parties in patent...more
Beginning in 2009, the Boards of Appeal of the European Patent Office ("EPO") issued a series of decisions that essentially created a new priority law in Europe that allowed members of the same patent family to negate each...more