Patent No. EP3668767 (titled "Electropneumatic Parking Brake Module With Directly Controlled Valves") was filed by Wabco on May 29, 2018. The application was issued on Jul 7, 2021.

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 |
|---|---|---|
| KNORR BREMSE SYSTEME FR SCHIENENFAHRZEUGE | Apr 7, 2022 | PRFER & PARTNER |
| KNORR BREMSE SYSTEME FUR SCHIENENFAHRZEUGE | Apr 7, 2022 | PRUFER & PARTNER MBB PATENTANWALTE RECHTSANWALTE |
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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