Medicament Injector Device

ChangeBridge: EPO Bulletin - Medical Devices (A61M)

Published March 25th, 2026

Detected April 2nd, 2026

Summary

The European Patent Office published Sanofi's European Patent Application EP4289457A2 for a medicament injector device. The patent names four inventors (Soares, Forys, Verlaak, Melzi) and covers IPC classifications A61M 5/20, 5/24, and 5/32 related to injection mechanisms. The application designates all EU and EPC contracting states.

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What changed

The EPO published patent application EP4289457A2 for Sanofi's medicament injector device, covering injection mechanisms (A61M 5/20, 5/24, 5/32). The application names inventors Soares, Forys, Verlaak, and Melzi and designates all EU member states and EPC contracting states for protection.

Parties developing medicament injection devices should review the patent claims to assess freedom-to-operate and potential licensing needs. European patents provide 20 years of exclusivity from filing date. No immediate compliance action required, but patent landscape awareness is recommended for product development planning.

Source document (simplified)

← EPO Patent Bulletin

MEDICAMENT INJECTOR DEVICE

Publication EP4289457A2 Kind: A2 Mar 25, 2026

Applicants

SANOFI

Inventors

SOARES, Francisco, FORYS, Bernhard, VERLAAK, Stefan, MELZI, Ilario

IPC Classifications

A61M 5/20 20060101AFI20240209BHEP A61M 5/24 20060101ALN20240209BHEP A61M 5/32 20060101ALN20240209BHEP

Designated States

AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR

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