The EPO published patent application EP4395852A1 filed by Mallinckrodt Pharmaceuticals Ireland Limited on March 25, 2026. The invention covers a pre-filled manual injector apparatus for drug delivery, with IPC classifications including A61M 5/178 (injection syringes), A61M 5/31 ( syringe barrel/needle configurations), and A61K 38/35 (potentially protein-based therapeutics). The designated states cover all major European markets including DE, FR, GB, IT, ES, NL, and 26 additional EPC member states.

Medical device manufacturers and pharmaceutical companies developing injection devices or drug delivery systems should review the patent claims to assess potential infringement risks. Freedom-to-operate analyses should consider this patent when commercializing similar pre-filled manual injector products in Europe. The patent remains pending and subject to examination before grant.