IP Verse

Methods Of Purifying Polypeptides

Patent No. EP3299380 (titled "Methods Of Purifying Polypeptides") was filed by F Hoffmann LA Roche on May 25, 2011. The application was issued on Aug 28, 2024.

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

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
MESTERMay 28, 2025GRUND
ZWICKER SCHNAPPAUF & PARTNERMay 27, 2025ZWICKER

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

EP3299380

F HOFFMANN LA ROCHE
Application Number
EP17167800A
Filing Date
May 25, 2011
Status
Granted And Under Opposition
Jul 26, 2024
Publication Date
Aug 28, 2024
External Links
Slate, Register , Google Patents