Patent No. EP2768652 (titled "Non-Symmetric Multiple Layer Injection Molded Products And Methods") was filed by Kortec on Oct 19, 2012. The application was issued on Apr 18, 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 |
|---|---|---|
| FOSTAG FORMENBAU | Jan 16, 2019 | KELLER SCHNEIDER PATENT UND MARKENANWALTE ZURICH |
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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