Patent No. EP3936455 (titled "Cartridge And Cartridge Assembly For Use In An Extrusion Gun") was filed by Soudal on Jul 8, 2020. The application was issued on Nov 23, 2022.

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 |
|---|---|---|
| HENKEL | Aug 22, 2023 | KBN |
| HENKEL | Aug 22, 2023 | PATENTANWALTE BAUER VORBERG KAYSER |
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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