Patent No. EP2304528 (titled "Hand Held Pointing Device With Roll Compensation") was filed by Movea on Jun 25, 2009. The application was issued on Jul 22, 2015.

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 |
|---|---|---|
| HILLCREST LABORATORIES | Apr 22, 2016 | DIEHL & PARTNER |
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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