Polyolefin Pressure Pipe Resin
Patent No. EP3969513 (titled "Polyolefin Pressure Pipe Resin") was filed by Equistar Chemicals on May 12, 2020. The application was issued on Aug 20, 2025.
Patent Summary
Patent Family
Patent Oppositions
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
EP3969513
- Application Number
- EP20731628A
- Filing Date
- May 12, 2020
- Status
- Granted And Under Opposition
- Jul 18, 2025
- Publication Date
- Aug 20, 2025
- External Links
- Slate, Register , Google Patents