Patent No. EP3494370 (titled "Improvements In Or Relating To Vibrating Fork Level Switches") was filed by Rosemount Measurement on Aug 2, 2017. The application was issued on Nov 5, 2025.

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 |
|---|---|---|
| ENDRESSHAUSER SECO | Jan 18, 2022 | ENDRESS HAUSER GROUP SERVICES DEUTSCHLAND AGCO |
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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