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IP Verse

Pegylated Liposomes For Delivery Of Immunogen-Encoding Rna

Patent No. EP4226941 (titled "Pegylated Liposomes For Delivery Of Immunogen-Encoding Rna") was filed by Glaxosmithkline on Aug 31, 2011. The application was issued on Oct 23, 2024.

Patent Summary

UPC Cases New

Latest UPC cases involving this patent.

Case NumberFiling DatePlaintiffProceeding Type
UPC_CFI_619/2025Jul 4, 2025GlaxosmithklineInfringement
UPC_CFI_621/2025Jul 3, 2025GlaxosmithklineInfringement

Patent Family

Patent Family

Patent Oppositions (5)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
ARROWHOUSEJul 23, 2025VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB
BIONTECHJul 22, 2025THOMANN
SANOFIJul 22, 2025ELKINGTON AND FIFE
WEICKMANN & WEICKMANNJul 22, 2025-
MODERNAJul 15, 2025MEWBURN ELLIS

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

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EP4226941

GLAXOSMITHKLINE
Application Number
EP23179901A
Filing Date
Aug 31, 2011
Status
Granted And Under Opposition
Sep 20, 2024
Publication Date
Oct 23, 2024
External Links
Slate, EP4226941B1, Google Patents