Patent No. EP2266930 (titled "Thermally Conductible Lean Concrete") was filed by Intellectual Management Luxembourg on Sep 17, 2007. The application was issued on Mar 23, 2016.

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 |
|---|---|---|
| HEIDELBERGCEMENT | Dec 13, 2016 | ZELLENTIN & PARTNER MBB PATENTANWALTE |
| RHEINISCHE NETZGESELLSCHAFT MBHRNG | Nov 30, 2016 | BTB BUNGARTZ BALTZER PARTNERSCHAFT MBB PATENTANWALTE |
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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