Patent No. EP3955594 (titled "Feedback Control Using A Correlation Measure") was filed by Oticon on Jul 27, 2021. The application was issued on May 10, 2023.

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.
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