Patent No. EP3022163 (titled "Glass Compositions, Fiberizable Glass Compositions, And Glass Fibers Made Therefrom") was filed by Electric Glass Fiber America on Jul 15, 2014. The application was issued on Jul 7, 2021.

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 |
|---|---|---|
| OWENS CORNING CAPITAL | Apr 5, 2022 | HASELTINE LAKE KEMPNER |
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 15, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Jan 12, 2026
Sep 11, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Sep 8, 2025
Jul 8, 2025
Jul 8, 2025
Jul 2, 2025
Jul 2, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
May 7, 2025
Apr 2, 2025
Feb 4, 2025
Feb 4, 2025
Jan 30, 2025
Jan 30, 2025
Jan 30, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Jan 29, 2025
Sep 3, 2024
Sep 3, 2024
Sep 3, 2024
Sep 3, 2024
Sep 3, 2024
Oct 12, 2022
Sep 28, 2022
Sep 5, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Aug 31, 2022
Apr 21, 2022
Apr 21, 2022
Apr 14, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Apr 5, 2022
Jul 20, 2021
Jun 10, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
May 28, 2021
Apr 15, 2021
Jan 20, 2021
Jan 20, 2021
Jan 20, 2021
Jan 20, 2021
Jan 20, 2021
May 15, 2020
May 15, 2020
May 15, 2020
May 15, 2020
May 15, 2020
May 15, 2020
May 15, 2020
Feb 19, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 29, 2020
Jan 8, 2020
Jan 8, 2020
Sep 16, 2019
Sep 16, 2019
Sep 16, 2019
Sep 16, 2019
Sep 16, 2019
May 6, 2019
May 6, 2019
Apr 29, 2019
Dec 14, 2018
Apr 23, 2018
Apr 12, 2018
Apr 12, 2018
Apr 12, 2018
Apr 12, 2018
Apr 12, 2018
Apr 12, 2018
Apr 12, 2018
Sep 20, 2016
Sep 20, 2016
Sep 20, 2016
Sep 20, 2016
Sep 20, 2016
Jun 15, 2016
May 25, 2016
Apr 28, 2016
Apr 19, 2016
Mar 29, 2016
Mar 10, 2016
Mar 2, 2016
Mar 2, 2016
Feb 11, 2016
Feb 11, 2016
Feb 11, 2016
Feb 11, 2016
Feb 11, 2016
Feb 11, 2016
Feb 9, 2016
Feb 9, 2016
Feb 9, 2016
Feb 9, 2016
Feb 9, 2016
Feb 9, 2016
Feb 9, 2016
Feb 2, 2016
Nov 27, 2015
Feb 10, 2015
Feb 10, 2015
Jan 22, 2015
Jan 22, 2015
Nov 11, 2014
Nov 11, 2014
Nov 11, 2014
Aug 4, 2014
Aug 4, 2014
Aug 4, 2014
Aug 4, 2014
Aug 4, 2014