Patent No. EP3813549 (titled "Ph Neutral Beta-Lactoglobulin Beverage Preparation") was filed by Arla Foods Amba on Jun 26, 2019. The application was issued on Sep 24, 2025.

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 |
|---|---|---|
| GLEISS GROSSE SCHRELL UND PARTNER MBB | Jun 24, 2026 | GLEISS GROSSE SCHRELL UND PARTNER |
| NUTRICIA | Jun 24, 2026 | NEDERLANDSCH OCTROOIBUREAU |
| ZIMMERMANN & PARTNER PATENTANWALTE MBB | Jun 19, 2026 | ZIMMERMANN & PARTNER PATENTANWALTE MBB |
| FRIESLANDCAMPINA NEDERLAND | Jun 16, 2026 | FRIESLANDCAMPINA DEPARTMENT |
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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