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IP Verse

Spacer Expander And Oil Control Ring Including Same - EP3779244

The patent EP3779244 was granted to Kabushiki Kaisha Riken on Sep 25, 2024. The application was filed on Mar 29, 2019 under application number EP19781732A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

EP3779244

KABUSHIKI KAISHA RIKEN
Application Number
EP19781732A
Filing Date
Mar 29, 2019
Status
Granted And Under Opposition
Aug 22, 2024
Publication Date
Sep 25, 2024
External Links
Slate, Register, Google Patents

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 DateRepresentativeOpposition Status
MAHLEJun 25, 2025AURIGIUM LEISCHNER & LUTHEADMISSIBLE
MAHLEJun 25, 2025GRAUELADMISSIBLE

Patent Citations (23) New

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

Citation PhasePublication Number
DESCRIPTIONEP2365233
DESCRIPTIONWO2016159269
EXAMINATIONUS5619795
INTERNATIONAL-SEARCH-REPORTJP2003083450
INTERNATIONAL-SEARCH-REPORTJP2011185383
INTERNATIONAL-SEARCH-REPORTJP2015124805
OPPOSITIONDE1475793
OPPOSITIONEP2365233
OPPOSITIONEP2767743
OPPOSITIONFR1211084
OPPOSITIONJP2003083450
OPPOSITIONJP2011185383
OPPOSITIONJP2015124805
OPPOSITIONUS2904377
OPPOSITIONUS4194747
OPPOSITIONUS5195758
OPPOSITIONUS5619795
OPPOSITIONUS9303765
SEARCHDE1475793
SEARCHEP2365233
SEARCHEP2767743
SEARCHFR1211084
SEARCHUS2904377

Dossier Documents

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