Patent No. EP3571112 (titled "Pillar Reinforcement") was filed by Zephyros on Jan 23, 2018. The application was issued on Jun 29, 2022.

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 |
|---|---|---|
| SIKA TECHNOLOGY | Mar 28, 2023 | SIKA PATENT ATTORNEYS |
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 7, 2026
Jan 3, 2026
Jan 3, 2026
Jan 3, 2026
Dec 10, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Dec 4, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Oct 27, 2025
Jul 24, 2025
Jun 27, 2025
Jun 16, 2025
Jun 16, 2025
Jun 16, 2025
Apr 22, 2025
Apr 22, 2025
Apr 14, 2025
Apr 14, 2025
Apr 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Feb 14, 2025
Dec 17, 2024
Dec 9, 2024
Dec 4, 2024
Dec 4, 2024
Dec 4, 2024
Nov 21, 2024
Nov 18, 2024
Nov 18, 2024
Nov 18, 2024
Oct 22, 2024
Oct 21, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 17, 2024
Oct 16, 2024
Oct 16, 2024
Oct 16, 2024
Oct 16, 2024
Oct 9, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Aug 21, 2024
Aug 16, 2024
Aug 16, 2024
Aug 16, 2024
Aug 16, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
May 27, 2024
Apr 9, 2024
Apr 4, 2024
Apr 4, 2024
Apr 4, 2024
Dec 8, 2023
Dec 4, 2023
Dec 4, 2023
Dec 4, 2023
Nov 8, 2023
Oct 31, 2023
Oct 31, 2023
Oct 31, 2023
Oct 31, 2023
Oct 31, 2023
Oct 31, 2023
Aug 10, 2023
Aug 7, 2023
Aug 7, 2023
Aug 7, 2023
Apr 25, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 21, 2023
Apr 14, 2023
Apr 14, 2023
Apr 11, 2023
Apr 6, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Mar 28, 2023
Jul 12, 2022
Jun 2, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
May 23, 2022
Jan 26, 2022
Jan 26, 2022
Jan 26, 2022
Jan 26, 2022
Jan 26, 2022
Nov 2, 2021
Nov 2, 2021
Nov 2, 2021
Nov 2, 2021
Nov 2, 2021
Jul 27, 2021
Jul 27, 2021
Jul 27, 2021
Jul 27, 2021
Jul 27, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
May 31, 2021
Feb 3, 2021
Feb 3, 2021
Jan 11, 2021
Jan 11, 2021
Jan 11, 2021
Jan 11, 2021
Jan 11, 2021
Oct 23, 2020
Oct 20, 2020
Oct 20, 2020
Oct 20, 2020
Jun 26, 2020
Jun 26, 2020
Jun 22, 2020
Jan 2, 2020
Dec 18, 2019
Oct 30, 2019
Sep 6, 2019
Sep 2, 2019
Aug 12, 2019
Aug 12, 2019
Aug 12, 2019
Aug 6, 2019
Jun 3, 2019
Aug 15, 2018
Jul 26, 2018
Jul 26, 2018
Jun 14, 2018
Jun 14, 2018
Jun 14, 2018