Patent No. EP4018168 (titled "Improvements In Or Relating To Field Devices") was filed by Rosemount Tank Radar on Nov 11, 2020. The application was issued on Dec 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 |
|---|---|---|
| ENDRESSHAUSER SECO | Feb 21, 2024 | 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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