Patent No. EP2580142 (titled "Portion Capsule For Pulverulent Or Liquid Basic Drinks Compounds") was filed by Nestec on May 4, 2011. The application was issued on Feb 15, 2023.

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 |
|---|---|---|
| ALOIS DALLMAYR KAFFEE OHG | May 24, 2017 | GRATTINGER MOHRING VON POSCHINGER PATENTANWALTE PARTNERSCHAFT MBB |
| HARMSEN UTESCHER | May 24, 2017 | - |
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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