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Patent No. EP1969106 (titled "Liquid Nonionic Surfactants For Emulsion Polymerization And Other Applications") was filed by Huntsman on Nov 28, 2006. The application was issued on Apr 22, 2020.

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 |
|---|---|---|
| AKZO NOBEL | Dec 12, 2017 | AKZO NOBEL CHEMICALS GROUP |
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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