Patent No. EP3965940 (titled "Grinding Method And System With Material Inlet Detection") was filed by Gebr Pfeiffer on Apr 22, 2021. The application was issued on Aug 16, 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 |
|---|---|---|
| LOESCHE | May 16, 2024 | WUNDERLICH & HEIM PATENTANWALTE PARTG MBB |
| THYSSENKRUPP POLYSIUS | Apr 29, 2024 | TETZNER |
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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