Patent No. EP2833018 (titled "Centrifugal Force Pendulum And Drive System Having Centrifugal Force Pendulum") was filed by Schaeffler on Jul 24, 2014. The application was issued on Jun 28, 2017.

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.
| Company | Opposition Date | Representative |
|---|---|---|
| VALEO EMBRAYAGES | Mar 28, 2018 | VALEO POWERTRAIN SYSTEMS |
| ZF FRIEDRICHSHAFEN | Mar 19, 2018 | - |
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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