EP3321543

KABUSHIKI KAISHA RIKEN
Application Number
EP16821021A
Filing Date
Jun 29, 2016
Status
Patent Maintained As Amended
Mar 15, 2024
Grant Date
Apr 17, 2024
External Links
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Biblio Summary

The patent EP3321543B2 was granted on Apr 17, 2024 by Kabushiki Kaisha Riken The patent is currently Patent Maintained As Amended.

The table below shows 1 patent oppositions filed on the patent at EPO, listing each opposing company and filing date. Tracking these filings indicates that the applicant is active in this industry, while opposing companies may be signaling their own interest in competing within the same space. These disputes are essential for insights into competitor actions, patent strategy and emerging technological trends.

CompanyOpposition DateOpposition Status

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MAHLE INTERNATIONAL GMBHJan 27, 2022ADMISSIBLE

The table below shows the patents of Kabushiki Kaisha Riken that have been opposed by other companies.

Patent NumberTitleGrant DateOpposition Count
EP3660180Sliding Member And Piston RingApr 12, 20231
EP3064810Piston Ring And Method For Manufacturing SameMar 31, 20211
EP3273113Piston RingDec 2, 20201