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IP Verse

Lubricating Oil Compositions For Automatic Transmissions - EP4121501

The patent EP4121501 was granted to Chevron Japan on Jan 24, 2024. The application was originally filed on Mar 12, 2021 under application number EP21712578A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP4121501

CHEVRON JAPAN
Application Number
EP21712578A
Filing Date
Mar 12, 2021
Status
Granted And Under Opposition
Dec 22, 2023
Publication Date
Jan 24, 2024
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

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AFTON CHEMICALOct 23, 2024J A KEMPADMISSIBLE

Patent Citations (12) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTEP2520640
INTERNATIONAL-SEARCH-REPORTJP2014237782
INTERNATIONAL-SEARCH-REPORTUS2020332218
OPPOSITIONEP1405897
OPPOSITIONEP1964911
OPPOSITIONEP2520640
OPPOSITIONJP2002000387
OPPOSITIONJP2016190953
OPPOSITIONJP2019137829
OPPOSITIONJP2019163407
OPPOSITIONUS2006240998
OPPOSITIONUS7902132

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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    Description

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