Patent No. EP2598450 (titled "Compacted Body For Use As Mineral Charge In The Production Of Mineral Wool") was filed by Rockwool on Jul 29, 2011. The application was issued on May 22, 2019.

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 |
|---|---|---|
| KNAUF INSULATION | Feb 24, 2020 | ARC |
| OWENS CORNING CAPITAL | Feb 21, 2020 | HASELTINE LAKE KEMPNER |
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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