Patent No. EP2660309 (titled "Automatic Dishwashing Detergent Composition") was filed by The Procter & Gamble on Sep 18, 2008. The application was issued on Mar 22, 2017.

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 |
|---|---|---|
| BASF | Dec 21, 2017 | BASF ASSOCIATION |
| UNILEVER UNILEVER | Dec 21, 2017 | VAN BENTHUM |
| DALLI WERKE | Dec 18, 2017 | F & E PATENT |
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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