Patent No. EP3141399 (titled "Improved Process For Producing Metal Moulds, Such As Sheets, Cylinders And The Like Provided With At Least One Structured Surface And Metal Stamps Obtained With This Process") was filed by Flai on Jul 20, 2016. The application was issued on Jan 20, 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 |
|---|---|---|
| HUECK RHEINISCHE | Oct 20, 2021 | HUMPL WAGNER |
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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