Patent No. EP3175863 (titled "Variants Of C-Type Natriuretic Peptide") was filed by Biomarin Pharmaceutical on May 20, 2010. The application was issued on Dec 1, 2021.
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_439/2025 | May 19, 2025 | Ascendis Pharma, Ascendis Pharma Growth Disorders | Counter Claim For Revocation |
| UPC_CFI_18/2025 | Jan 13, 2025 | Biomarin Pharmaceutical | Infringement |

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 |
|---|---|---|
| ASCENDIS PHARMA | Apr 10, 2025 | CARPMAELS & RANSFORD |
| ASCENDIS PHARMA GROWTH DISORDERS | Sep 1, 2022 | CARPMAELS & RANSFORD |
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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