Patent No. EP3984365 (titled "Aqueous Disinfectant Composition Containing Peracetic Acid") was filed by Knieler & Team on Oct 14, 2021. The application was issued on Sep 11, 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 |
|---|---|---|
| BODE CHEMIE | Jun 11, 2025 | TER MEER STEINMEISTER & PARTNER |
| DR SCHUMACHER | Jun 10, 2025 | SANDVOSS |
| ECOLAB USA | Jun 4, 2025 | GODEMEYER BLUM LENZE PATENTANWALTE PARTNERSCHAFT MBB WERKPATENT |
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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