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IP Verse

Internal Combustion Engine Piston Ring - EP3321543

The patent EP3321543 was granted to Kabushiki Kaisha Riken on Apr 17, 2024. The application was filed on Jun 29, 2016 under application number EP16821021A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

EP3321543

KABUSHIKI KAISHA RIKEN
Application Number
EP16821021A
Filing Date
Jun 29, 2016
Status
Patent Maintained As Amended
Mar 15, 2024
Publication Date
Apr 17, 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
MAHLEJan 27, 2022BRP RENAUD & PARTNER MBB RECHTSANWALTE PATENTANWALTE STEUERBERATERADMISSIBLE

Patent Citations (15) New

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

Citation PhasePublication Number
INTERNATIONAL-SEARCH-REPORTJP2006017287
INTERNATIONAL-SEARCH-REPORTJPS5867946
INTERNATIONAL-SEARCH-REPORTWO2013031548
OPPOSITIONDE102009052587
OPPOSITIONDE102015004814
OPPOSITIONDE3441919
OPPOSITIONEP1767834
OPPOSITIONGB633457
OPPOSITIONJPH0624608Y
OPPOSITIONJPS5867946
OPPOSITIONUS5934680
SEARCHCN101581259
SEARCHCN2763548Y
SEARCHJPH1089476
SEARCHUS4533149

Dossier Documents

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    Description

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