Patent No. EP4197378 (titled "Personal Protection Device") was filed by D AIR LAB on Dec 19, 2022. The application was issued on Jul 31, 2024.

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 |
|---|---|---|
| ALPINESTARS | Apr 30, 2025 | DRAGOTTI & ASSOCIATI |
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
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Oct 2, 2026
Sep 15, 2026
Sep 14, 2026
Sep 11, 2026
Sep 11, 2026
Sep 11, 2026
Aug 12, 2026
Aug 12, 2026
Aug 12, 2026
Aug 11, 2026
Aug 11, 2026
Aug 7, 2026
Aug 7, 2026
Aug 7, 2026
Jul 22, 2026
Jul 22, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jul 15, 2026
Jan 30, 2026
Jan 29, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Jan 23, 2026
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Sep 23, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
Sep 16, 2025
May 16, 2025
May 16, 2025
May 7, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Aug 13, 2024
Jul 4, 2024
Jun 25, 2024
Jun 25, 2024
Jun 25, 2024
Jun 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 25, 2024
Apr 10, 2024
Dec 18, 2023
Dec 18, 2023
Jun 26, 2023
May 24, 2023
May 2, 2023
Apr 26, 2023
Apr 26, 2023
Apr 26, 2023
Apr 26, 2023
Apr 13, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Feb 15, 2023
Dec 22, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022
Dec 19, 2022