Patent No. EP2113634 (titled "Gas Turbine Engine Case With Replaced Flange And Method Of Repairing The Same Using Cold Metal Transfer") was filed by United on Mar 31, 2009. The application was issued on Jun 1, 2016.

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 |
|---|---|---|
| SAFRAN AIRCRAFT ENGINES | Feb 27, 2017 | CABINET BEAU DE LOMENIE |
| SIEMENS | Oct 19, 2016 | - |
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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