Patent No. EP2659558 (titled "Method For Placing At Least One Duct/Communication Cable Below A Road Surface In An Area") was filed by Dellcron on Nov 10, 2011. The application was issued on Feb 27, 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 |
|---|---|---|
| MEDAM | Nov 27, 2019 | NORENS PATENTBYRA |
| LISSMAC MASCHINENBAU | Nov 26, 2019 | OTTEN |
| LISSMAC MASCHINENBAU | Nov 26, 2019 | RAVENSPAT |
| HUSQVARNA | Oct 21, 2019 | JOHANSSON |
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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