Patent No. EP2881321 (titled "One-Piece Composite Bifurcated Winglet") was filed by The Boeing on Nov 3, 2014. The application was issued on Jul 13, 2022.

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 |
|---|---|---|
| AIRBUS OPERATIONS LIMITEDGB AIRBUS SASFR AIRBUS OPERATIONS SASFR AIRBUS OPERATIONS DE AIRBUS OPERATIONS S | Apr 5, 2019 | EIP |
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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