Patent No. EP3335707 (titled "Combinations Of A Muscarinic Receptor Antagonist And A Beta-2 Adrenoreceptor Agonist") was filed by Glaxo Group on Nov 29, 2010. The application was issued on Apr 17, 2024.

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 |
|---|---|---|
| AERA | Jan 17, 2025 | AERA |
| AERA | Jan 17, 2025 | BARDEHLE PAGENBERG SL |
| GENERICS UK | Jan 17, 2025 | ELKINGTON AND FIFE |
| KILBURN & STRODE | Jan 17, 2025 | KILBURN & STRODE |
| SANDOZ | Jan 17, 2025 | MAIWALD |
| TEVA PHARMACEUTICALS | Jan 17, 2025 | ELKINGTON AND FIFE |
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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