Patent No. EP3695584 (titled "Monitoring Of Heat Consumption") was filed by Ista on Oct 2, 2019. The application was issued on Nov 18, 2020.

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 |
|---|---|---|
| TECHEM ENERGY SERVICES | Aug 18, 2021 | KEIL & SCHAAFHAUSEN PATENTANWALTE PARTGMBB |
| DSI TRANEMOSEGAARDBOLIGSELSKABET SYDFYN HADERSLEV BOLIGSELSKABBOLIGSELSKABET AKB ALBERTSLUND | Aug 11, 2021 | INSPICOS PS |
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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