Patent No. EP2687354 (titled "Thermoplastic Foam Plates With A Welding Seam Thickness Of 30 To 200 Micrometers") was filed by Basf on Jul 17, 2012. The application was issued on Apr 5, 2017.

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 |
|---|---|---|
| AUSTROTHERM | Jan 5, 2018 | MULLNER |
| SYNTHOS | Jan 5, 2018 | UEXKULL & STOLBERG |
| URSA INSULATION | Jan 3, 2018 | ZIMMERMANN & PARTNER PATENTANWALTE MBB |
| SWISSPOR MANAGEMENT | Dec 29, 2017 | KOELLIKER |
| JACKON INSULATION | Dec 20, 2017 | KAEWERT |
| KARL BACHL KUNSTSTOFFVERARBEITUNG | Dec 14, 2017 | KUHNEN & WACKER PATENT UND RECHTSANWALTSBURO PARTG MBB |
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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