Patent No. EP4209367 (titled "Method For Triggering An Rtr Valve, Control Device, Air Spring System And Trailer") was filed by ZF CV Systems Europe on Dec 7, 2022. The application was issued on Aug 21, 2024.

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 FUR NUTZFAHRZEUGE | May 20, 2025 | PRUFER & PARTNER MBB PATENTANWALTE RECHTSANWALTE |
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