Patent No. EP4103148 (titled "Polyacrylate-Free Cosmetic Preparation") was filed by Beiersdorf on Jan 14, 2021. The application was issued on Jan 22, 2025.

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 |
|---|---|---|
| DALLI WERKE | Oct 22, 2025 | F & E PATENT |
| ROQUETTE FRERES | Oct 22, 2025 | F & E PATENT |
| HENKEL | Oct 21, 2025 | - |
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
Mar 4, 2026
Mar 4, 2026
Mar 4, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Feb 26, 2026
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Nov 3, 2025
Oct 28, 2025
Oct 28, 2025
Oct 27, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 22, 2025
Oct 21, 2025
Oct 21, 2025
Oct 21, 2025
Oct 21, 2025
Oct 21, 2025
Oct 21, 2025
Feb 4, 2025
Jan 7, 2025
Dec 17, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Dec 13, 2024
Oct 4, 2024
Oct 4, 2024
Oct 4, 2024
Oct 4, 2024
Oct 4, 2024
Oct 4, 2024
Sep 2, 2024
Sep 2, 2024
Sep 2, 2024
Sep 2, 2024
Jun 14, 2024
Jun 14, 2024
Jun 14, 2024
Jun 14, 2024
Jun 14, 2024
Jun 14, 2024
May 8, 2024
Jan 26, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
Jan 18, 2024
May 16, 2023
May 16, 2023
May 16, 2023
May 16, 2023
May 11, 2023
Feb 22, 2023
Feb 22, 2023
Feb 22, 2023
Feb 22, 2023
Feb 22, 2023
Feb 22, 2023
Nov 23, 2022
Sep 22, 2022
Aug 29, 2022
Jul 20, 2022
Jul 12, 2022
Jul 12, 2022
Jun 24, 2022
Sep 6, 2021
Aug 19, 2021
Aug 19, 2021
Aug 19, 2021
Feb 24, 2021
Feb 8, 2021
Jan 14, 2021
Jan 14, 2021
Jan 14, 2021
Jan 14, 2021
Jan 14, 2021
Jan 14, 2021