Patent No. EP1742531 (titled "Aqueous Fungicidal Composition And Use Thereof For Combating Harmful Micro Organisms") was filed by Basf on Apr 25, 2005. The application was issued on Aug 30, 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 |
|---|---|---|
| LANXESS DEUTSCHLAND | Jul 14, 2015 | HERBOLD |
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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