Patent No. EP4017916 (titled "Polypropylene - Polyethylene Blends With Improved Properties") was filed by Borealis on Aug 4, 2020. The application was issued on May 24, 2023.

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 |
|---|---|---|
| INEOS EUROPE | Feb 22, 2024 | CAPALDI |
| SABIC SABIC PETROCHEMICALS | Feb 22, 2024 | SABIC GROUP |
| SABIC SABIC PETROCHEMICALS | Feb 22, 2024 | SABIC INTELLECTUAL GROUP |
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
Jan 2, 2026
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Nov 26, 2025
Nov 21, 2025
Nov 21, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Nov 17, 2025
Nov 17, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Oct 1, 2025
Oct 1, 2025
Oct 1, 2025
Sep 26, 2025
Sep 26, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 25, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 23, 2025
Sep 19, 2025
Sep 19, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Jun 30, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jan 28, 2025
Jan 28, 2025
Jan 28, 2025
Jan 28, 2025
Jan 28, 2025
Jan 28, 2025
Jul 15, 2024
Jul 15, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Jul 10, 2024
Mar 13, 2024
Mar 13, 2024
Mar 13, 2024
Feb 28, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Feb 22, 2024
Jun 6, 2023
Apr 28, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Jan 5, 2023
Jan 5, 2023
Jan 5, 2023
Jan 5, 2023
Jan 5, 2023
Jan 5, 2023
Nov 23, 2022
Oct 13, 2022
Jun 1, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
Mar 29, 2022
Mar 22, 2022
Mar 16, 2022
Mar 16, 2022
Feb 28, 2022
Feb 12, 2022
Feb 12, 2022
Feb 12, 2022
Jan 10, 2022
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Nov 30, 2021
Jul 20, 2021
Jul 20, 2021
Jul 20, 2021
May 21, 2021
May 21, 2021
May 21, 2021
May 20, 2021
Apr 26, 2021
Apr 20, 2021
Apr 20, 2021
Apr 20, 2021
Apr 20, 2021
Apr 20, 2021
Apr 20, 2021
Mar 15, 2021
Feb 25, 2021
Feb 25, 2021
Oct 23, 2020
Oct 23, 2020
Oct 23, 2020
Oct 23, 2020
Aug 20, 2020
Aug 19, 2020
Aug 14, 2020
Aug 4, 2020
Aug 4, 2020
Aug 4, 2020
Aug 4, 2020
Aug 4, 2020
Aug 4, 2020