Patent No. EP2027340 (titled "Structural Joint") was filed by Hengelhoef Concrete Joints on Jun 12, 2006. The application was issued on Jul 15, 2015.

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 |
|---|---|---|
| PEIKKO GROUP CORPORATION | Feb 11, 2016 | BOCO |
| HSD INDUSTRIEBELÄGE GMBH | Feb 4, 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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