Patent No. EP3109275 (titled "Polyethylene Composition For Pipe Applications With Improved Sagging And Extrusion Properties") was filed by ABU Dhabi Polymers Borouge on Jun 22, 2015. The application was issued on Aug 9, 2017.

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 |
|---|---|---|
| TOTALENERGIES ONE TECH BELGIUM | May 9, 2018 | GARCIA MARTIN |
| CHEVRON PHILLIPS CHEMICAL | Apr 30, 2018 | POTTER CLARKSON |
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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