Patent No. EP3695157 (titled "Method And Arrangement For Renovating A Line Which Carries A Liquid Or Gaseous Medium") was filed by Brandenburger Liner on Oct 10, 2018. The application was issued on Aug 14, 2024.

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.
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.