Patent No. EP1978984 (titled "Nutritional System And Methods For Increasing Longevity") was filed by Nestec on Jan 31, 2007. The application was issued on Jun 10, 2015.

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 |
|---|---|---|
| DSM NUTRITIONAL PRODUCTS | Mar 10, 2016 | DUX |
| FRESENIUS KABI DEUTSCHLAND | Mar 10, 2016 | FRESENIUS KABI DEUTSCHLAND |
| NUTRICIA | Mar 9, 2016 | VO |
| IAMS EUROPE B.V. | Mar 8, 2016 | ZIMMERMANN & PARTNER PATENTANWALTE MBB |
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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