Patent No. EP2728770 (titled "Satellite Transponder With A System And A Method For Processing Communication Data By Analog Digital Conversion Of The Signals, Formation Of Frequency Channels And Combination Of Them By A Switch With A Plurality Of Stages.") was filed by The Boeing on Oct 31, 2013. The application was issued on Aug 3, 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 |
|---|---|---|
| AIRBUS DEFENCE AND SPACE | May 3, 2017 | HEWETT |
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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