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IP Verse

Use Of Iron Hydroxide In Biogas Production As Hydrogen Sulphide Additive For Biomass - EP3438268

The patent EP3438268 was granted to ISF on Apr 1, 2020. The application was filed on Jul 31, 2017 under application number EP17184091A. The patent is currently recorded with a legal status of "Revoked".

EP3438268

ISF
Application Number
EP17184091A
Filing Date
Jul 31, 2017
Status
Revoked
Mar 21, 2025
Publication Date
Apr 1, 2020
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions

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 DateRepresentativeOpposition Status
TERRAVISDec 22, 2020PELSTER BEHRENDS PATENTANWALTE PARTG MBB -

Patent Citations (16) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication Number
DESCRIPTIONEP1577269
DESCRIPTIONJPS6014995
OPPOSITIONCN105617996
OPPOSITIONDE102007003532
OPPOSITIONDE102008018698
OPPOSITIONEP1577269
OPPOSITIONEP2441742
OPPOSITIONEP2998386
OPPOSITIONJP2001316302
OPPOSITIONKR20080045818
OPPOSITIONUS6743405
SEARCHCN105617996
SEARCHDE102007003532
SEARCHEP2998386
SEARCHJP2001316302
SEARCHKR20080045818

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

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