Patent No. EP2265257 (titled "Inhalation Composition Containing Aclidinium For Treatment Of Asthma And Chronic Obstructive Pulmonary Disease") was filed by Almirall on Mar 13, 2009. The application was issued on Oct 25, 2023.

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 |
|---|---|---|
| GENERICS UK | May 12, 2016 | FRKELLY |
| HEXAL | May 6, 2016 | TER MEER UND 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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