IP Verse

Use Of Perfusion Seed Cultures To Improve Biopharmaceutical Fed-Batch Production Capacity And Product Quality

Patent No. EP3083933 (titled "Use Of Perfusion Seed Cultures To Improve Biopharmaceutical Fed-Batch Production Capacity And Product Quality") was filed by Biogen MA on Dec 19, 2014. The application was issued on Jan 21, 2026.

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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
COHAUSZ & FLORACKOct 21, 2026COHAUSZ & FLORACK
MAIWALD PATENTANWALTSOct 21, 2026MAIWALD PATENT- UND RECHTSANWALTSGESELLSCHAFT MBH
STORZOct 21, 2026MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB
GRUNECKER PATENT UND RECHTSANWALTE PARTG MBBOct 20, 2026GRUNECKER PATENT
STRAWMANOct 20, 2026VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB

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

EP3083933

BIOGEN MA
Application Number
EP14827357A
Filing Date
Dec 19, 2014
Status
Granted And Under Opposition
Dec 19, 2025
Publication Date
Jan 21, 2026
External Links
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