Production Of Ctmp From A Hardwood/Softwood Mixture
Patent No. EP4590894 (titled "Production Of Ctmp From A Hardwood/Softwood Mixture") was filed by Billerud Aktiebolag Publ on Dec 20, 2023. The application was issued on Nov 5, 2025.
Patent Summary
Patent Family
Patent Oppositions (2)
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.
Dossier Documents
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.
Date
Description
Get instant alerts for new documents
EP4590894
- Application Number
- EP23836479A
- Filing Date
- Dec 20, 2023
- Status
- Granted And Under Opposition
- Oct 3, 2025
- Publication Date
- Nov 5, 2025
- External Links
- Slate, Register , Google Patents