Patent No. EP2136048 (titled "Variable Capacity-Type Exhaust Turbo Supercharger Equipped With Variable Nozzle Mechanism") was filed by Mitsubishi Heavy Industries on Oct 3, 2008. The application was issued on Dec 19, 2018.

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 |
|---|---|---|
| BORGWARNER | Sep 19, 2019 | BAUR & WEBER PATENTANWALTE PARTG MBB |
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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