Patent No. EP3754409 (titled "Augmented Reality Device And Optical System Used Therein") was filed by Matrixed Reality Technology on Feb 12, 2019. The application was issued on May 21, 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 |
|---|---|---|
| EDEN FUTURE HK | Nov 7, 2025 | BIRD & BIRD HAMBURG |
| EDEN FUTURE HK | Nov 7, 2025 | MERTZLUFFT PAUFLER |
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
Jun 15, 2026
Jun 11, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Jun 10, 2026
Mar 10, 2026
Mar 10, 2026
Mar 2, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Feb 23, 2026
Jan 2, 2026
Jan 2, 2026
Jan 2, 2026
Dec 18, 2025
Dec 18, 2025
Dec 18, 2025
Nov 13, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Nov 7, 2025
Jun 4, 2025
Apr 25, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Jan 8, 2025
Jan 8, 2025
Jan 8, 2025
Jan 8, 2025
Jan 8, 2025
Jan 8, 2025
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Aug 7, 2024
Aug 7, 2024
Aug 7, 2024
Aug 7, 2024
Aug 7, 2024
Aug 7, 2024
Jan 3, 2024
Dec 20, 2023
Dec 20, 2023
May 24, 2023
May 24, 2023
May 24, 2023
May 24, 2023
May 24, 2023
Jan 30, 2023
Jan 30, 2023
Jan 24, 2023
Sep 27, 2021
Sep 27, 2021
Sep 27, 2021
Sep 27, 2021
Sep 27, 2021
Sep 27, 2021
Sep 27, 2021
Mar 30, 2021
Mar 12, 2021
Mar 12, 2021
Mar 12, 2021
Mar 12, 2021
Mar 1, 2021
Nov 25, 2020
Oct 20, 2020
Oct 19, 2020
Oct 19, 2020
Oct 19, 2020
Sep 18, 2020
Sep 18, 2020
Sep 18, 2020
Sep 7, 2020
Aug 27, 2020
Aug 27, 2020
Aug 27, 2020
Aug 27, 2020
Aug 27, 2020
Aug 27, 2020
Aug 27, 2020
Aug 27, 2020
Aug 27, 2020
Jun 19, 2020
Jun 18, 2020
Jun 11, 2020
Sep 11, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Sep 2, 2019
Aug 15, 2019
Aug 15, 2019
Aug 15, 2019