Patent No. EP4122987 (titled "Aqueous Coating Material, Coating Obtained With The Coating Material, Coated Substrate, Use Of The Coating Material And Method For Preparing The Aqueous Coating Material") was filed by DAW on Jul 21, 2021. The application was issued on Sep 27, 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 |
|---|---|---|
| WCHTERSHUSER & HARTZ | Jun 27, 2024 | WCHTERSHUSER & HARTZ |
| WACHTERSHAUSER & HARTZ PATENTANWALTSPARTNERSCHAFT MBB | Jun 27, 2024 | WACHTERSHAUSER & HARTZ PATENTANWALTSPARTNERSCHAFT MBB |
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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