Patent No. EP3730044 (titled "Compact On-Body Physiological Monitoring Device") was filed by Abbott on Feb 2, 2010. The application was issued on Dec 29, 2021.

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 |
|---|---|---|
| DEXCOM DEUTSCHLAND | Jun 23, 2023 | HOFFMANN EITLE |
| DEXCOM | Sep 28, 2022 | HOFFMANN EITLE |
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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