Patent No. EP2388504 (titled "Sound-Deadening Duct For Aeriform Fluids And Method Of Manufacturing Same") was filed by Fiat Group Automobiles on May 20, 2011. The application was issued on Jan 18, 2023.

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 |
|---|---|---|
| MAHLE | Apr 10, 2019 | BRP RENAUD & PARTNER MBB RECHTSANWALTE PATENTANWALTE STEUERBERATER |
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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