Patent No. EP4307923 (titled "Liquid Nutritional Composition Suitable For Muscle Function") was filed by Nutricia on Mar 17, 2022. The application was issued on Jun 25, 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 |
|---|---|---|
| FRESENIUS KABI DEUTSCHLAND | Mar 24, 2026 | FRESENIUS KABI DEUTSCHLAND |
| NESTLE | Mar 20, 2026 | 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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