Patent No. EP2806855 (titled "Dry Powder Formulation Comprising A Corticosteroid And A Beta-Adrenergic For Administration By Inhalation") was filed by Chiesi Farmaceutici on Jan 23, 2013. The application was issued on Jul 11, 2018.

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 |
|---|---|---|
| ZBM PATENTS | Apr 10, 2019 | ZBM PATENTS ZEA |
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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