Patent No. EP3306160 (titled "Adhesive Transfer Hose Having A Barrier Layer And Method Of Use") was filed by Nordson on Jul 14, 2017. The application was issued on Nov 17, 2021.

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 |
|---|---|---|
| TEAT | Aug 17, 2022 | MINGHETTI |
| FOCKE MELER GLUING SOLUTIONS | Aug 15, 2022 | AULICH |
| BAUMER HHS | Jul 26, 2022 | PATENTSHIP PATENTANWALTSGESELLSCHAFT |
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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