Patent No. EP2100902 (titled "Methods For Treating Pain By Administering An Antagonist Antibody Against The Nerve Growth Factor And An Opioid Analgesic, And Compositions Containing The Same") was filed by Rinat Neuroscience on Oct 8, 2003. The application was issued on Dec 18, 2019.

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 |
|---|---|---|
| REGENERON PHARMACEUTICALS | Sep 18, 2020 | MEWBURN ELLIS |
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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