EP3660180

KABUSHIKI KAISHA RIKEN
Application Number
EP18867341A
Filing Date
Oct 9, 2018
Status
Granted And Under Opposition
Mar 10, 2023
Grant Date
Apr 12, 2023
External Links
Slate, Register

Biblio Summary

The patent EP3660180B1 was granted on Apr 12, 2023 by Kabushiki Kaisha Riken The patent is currently Granted And Under Opposition.

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

Get instant alerts for new oppositions and patent status changes

MAHLE INTERNATIONAL GMBHDec 22, 2023ADMISSIBLE

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

Patent NumberTitleGrant DateOpposition Count
EP3321543Internal Combustion Engine Piston RingApr 17, 20241
EP3064810Piston Ring And Method For Manufacturing SameMar 31, 20211
EP3273113Piston RingDec 2, 20201