Patent No. EP2525130 (titled "Insert Hose For Cladding And Retrofitting Pipes And Channels, In Particular Waste Water Channels") was filed by Impreg on Apr 28, 2012. The application was issued on May 27, 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 |
|---|---|---|
| OCV INTELLECTUAL CAPITAL, LLC | Feb 26, 2016 | MEWBURN ELLIS |
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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