The European Patent Office (EPO) has published patent application EP4630047A1, filed by Idorsia Pharmaceuticals Ltd, detailing a vaccine against Klebsiella Pneumoniae. The publication date is March 18, 2026. This patent application covers various aspects of the vaccine, including its composition and potential therapeutic uses, as indicated by the IPC classifications.

This is a patent publication, not a regulatory rule or enforcement action. For pharmaceutical companies and legal professionals involved in intellectual property, this publication signifies the formal disclosure of the invention. It does not impose any immediate compliance obligations but is a key event in the patent lifecycle, potentially leading to granted patent rights in designated states across Europe.