Patent No. EP3310760 (titled "Crystalline L-Arginine Salt Of (R)-2-(7-(4-Cyclopentyl-3-(Trifluoromethyl)Benzyloxy)-1,2,3,4-Tetrahydrocyclo-Penta[B]Indol-3-Yl)Acetic Acid(Compound1) For Use In Sipi Receptor-Associated Disorders") was filed by Arena Pharmaceuticals on Jun 21, 2016. The application was issued on Oct 19, 2022.

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 |
|---|---|---|
| SANDOZ | Jun 14, 2023 | KRAUS & LEDERER PARTGMBB |
| SCORPIO | Jun 14, 2023 | SAGITTARIUS |
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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