Patent No. EP1835784 (titled "System For Evaluating Hearing Assistance Device Settings Using Detected Sound Environment") was filed by Starkey Laboratories on Mar 6, 2007. The application was issued on Dec 23, 2020.

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 |
|---|---|---|
| GN HEARING WIDEX OTICON | May 2, 2018 | AERA |
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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