IP Verse

Novel Lipids And Compositions For The Delivery Of Therapeutics

Patent No. EP4241767 (titled "Novel Lipids And Compositions For The Delivery Of Therapeutics") was filed by Arbutus Biopharma on Nov 10, 2009. The application was issued on Oct 23, 2024.

Patent Summary

Lipid particles comprising cationic lipids that enhance the delivery of therapeutic nucleic acids, including siRNA and plasmids, to cells. The particles contain a cationic lipid that provides enhanced membrane fluidity, while the therapeutic agent is encapsulated within the lipid particle. The lipid particles exhibit improved therapeutic index compared to conventional nucleic acid delivery systems, with enhanced activity and reduced toxicity. The lipid particles can be formulated for systemic delivery, including intracellular targeting, and are suitable for a wide range of therapeutic applications, including gene therapy, RNAi, and immunostimulation.

UPC Cases New

Latest UPC cases involving this patent.

Case NumberFiling DatePlaintiffProceeding Type
UPC_CFI_607/2025Jul 8, 2025ModernaCounter Claim For Revocation
UPC_CFI_192/2025Mar 3, 2025Arbutus Biopharma, Genevant SciencesInfringement

Patent Family

Patent Family

Patent Oppositions (4)

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
KELTIEJul 23, 2025-
MERCK SHARP & DOHME UKJul 23, 2025COHAUSZ & FLORACK
MODERNAApr 29, 2025HOFFMANN EITLE

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.

  • Date

    Description

  • Get instant alerts for new documents

EP4241767

ARBUTUS BIOPHARMA
Application Number
EP23175192A
Filing Date
Nov 10, 2009
Status
Granted And Under Opposition
Sep 20, 2024
Publication Date
Oct 23, 2024
External Links
Slate, Register , Google Patents