Patent No. EP1668074 (titled "Flame Resistant Aromatic Polyamide Resin Composition And Articles Therefrom") was filed by Dupont Polymers on Oct 1, 2004. The application was issued on Feb 21, 2024.

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 |
|---|---|---|
| RHODIA OPERATIONS | May 17, 2017 | SCHOLZ |
| CLARIANT PLASTICS & COATINGS | May 16, 2017 | CLARIANT PRODUKTE DEUTSCHLAND |
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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