Patent No. EP3501489 (titled "Method For Strengthening And Repairing Hair, And Kit Therefor") was filed by LIW Patent BY Guarantee on Feb 13, 2017. The application was issued on Nov 1, 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 |
|---|---|---|
| HOGAN LOVELLS | Jul 25, 2024 | KLICZNIK |
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 22, 2026
Jan 20, 2026
Jan 19, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 14, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Nov 26, 2025
Nov 26, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 20, 2025
Nov 20, 2025
Nov 20, 2025
Jun 30, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Jun 24, 2025
Mar 24, 2025
Mar 24, 2025
Mar 24, 2025
Mar 24, 2025
Mar 24, 2025
Mar 21, 2025
Mar 21, 2025
Mar 17, 2025
Mar 17, 2025
Mar 17, 2025
Feb 7, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Feb 4, 2025
Dec 20, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Aug 16, 2024
Aug 16, 2024
Aug 8, 2024
Aug 5, 2024
Aug 5, 2024
Jul 31, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Jul 25, 2024
Nov 14, 2023
Oct 6, 2023
Sep 21, 2023
Sep 21, 2023
Sep 21, 2023
Sep 21, 2023
Sep 21, 2023
Sep 21, 2023
May 26, 2023
May 26, 2023
May 26, 2023
May 26, 2023
May 26, 2023
May 26, 2023
Mar 24, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 9, 2023
Mar 9, 2023
Mar 3, 2023
Oct 13, 2022
Oct 13, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Nov 9, 2021
Nov 9, 2021
Nov 5, 2021
Nov 5, 2021
Oct 5, 2021
Oct 5, 2021
Oct 5, 2021
Sep 16, 2021
Sep 16, 2021
Sep 16, 2021
Sep 16, 2021
Sep 16, 2021
Sep 16, 2021
Sep 16, 2021
Sep 16, 2021
Sep 16, 2021
Aug 27, 2021
Aug 27, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Jul 14, 2021
Apr 14, 2021
Apr 14, 2021
Mar 25, 2021
Mar 23, 2021
Mar 23, 2021
Mar 23, 2021
Mar 23, 2021
Mar 19, 2021
Mar 19, 2021
Mar 19, 2021
Mar 19, 2021
Feb 18, 2021
Feb 10, 2021
Feb 8, 2021
Feb 5, 2021
Feb 1, 2021
Jan 29, 2021
Jan 26, 2021
Jul 28, 2020
Jul 9, 2020
Jul 9, 2020
Jul 9, 2020
Jul 9, 2020
Jun 26, 2020
Mar 5, 2020
Mar 4, 2020
Mar 4, 2020
Feb 26, 2020
Feb 5, 2020
Feb 5, 2020
Feb 4, 2020
Feb 4, 2020
Jan 14, 2020
Jan 9, 2020
Dec 5, 2019
Oct 30, 2019
Oct 24, 2019
Oct 24, 2019
Oct 24, 2019
Oct 24, 2019
Oct 24, 2019
Oct 24, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 22, 2019
Oct 21, 2019
Sep 13, 2019
May 29, 2019
May 3, 2019
Apr 18, 2019
Apr 18, 2019
Apr 17, 2019
Apr 16, 2019
Mar 27, 2019
Mar 26, 2019
Mar 26, 2019
Mar 21, 2019
Mar 20, 2019
Mar 15, 2019
Mar 13, 2019
Mar 13, 2019
Feb 19, 2019
Feb 19, 2019
Feb 19, 2019
Feb 19, 2019
Feb 19, 2019
Feb 19, 2019
Jan 4, 2019
Mar 21, 2018
Mar 1, 2018
Mar 1, 2018
Mar 1, 2018