Patent No. EP3131729 (titled "Tandem Mold For Creating Injection-Molded Parts From Synthetic Material") was filed by Plastisud on Nov 27, 2014. The application was issued on Nov 28, 2018.

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 |
|---|---|---|
| RPC SUPERFOS | Sep 30, 2019 | GUARDIAN CONSULTING IS |
| PETERREINS SCHLEY PATENT UND RECHTSANWALTE PARTG MBB | Aug 28, 2019 | PETERREINS SCHLEY |
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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