Patent No. EP1897804 (titled "Systems And Methods For Controlling Aricraft Electrical Power") was filed by The Boeing on Jun 26, 2007. The application was issued on Feb 27, 2019.

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 GMBH, AIRBUS S.A.S., AIRBUS OPERATIONS S.A.S., AIRBUS OPERATIONS LTD., AIRBUS OPERATIONS S.L. | Sep 23, 2016 | SCHICKER |
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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