Patent No. EP3559065 (titled "Phenol Resin For Use In The Phenol Resin Component Of A Two-Component Binder System") was filed by Httenes Albertus Chemische Werke Gesellschaft MIT Beschrnkter Haftung on Dec 21, 2017. The application was issued on Feb 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 |
|---|---|---|
| ASK CHEMICALS | Nov 17, 2021 | SCHUPFNER |
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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