The weekly litigation news digest is live. Subscribe now
The patent EP3793890 was granted to DRR Systems on Oct 26, 2022. The application was filed on Nov 25, 2019 under application number EP19809780A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 | Opposition Status |
|---|---|---|---|
| EISENMANN | Jul 25, 2023 | OSTERTAG & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | CN103538649 |
| EXAMINATION | DE102010010212 |
| EXAMINATION | DE102010051789 |
| EXAMINATION | DE102015003213 |
| EXAMINATION | DE102016014882 |
| EXAMINATION | DE112015000150T |
| EXAMINATION | FR2920125 |
| EXAMINATION | JP2002225759 |
| EXAMINATION | JP2003256045 |
| EXAMINATION | JP2012025306 |
| EXAMINATION | JP2018024415 |
| EXAMINATION | JPH11188302 |
| EXAMINATION | US2004122570 |
| EXAMINATION | US2012205175 |
| EXAMINATION | US2018142488 |
| EXAMINATION | US9014902 |
| INTERNATIONAL-SEARCH-REPORT | DE102015006098 |
| INTERNATIONAL-SEARCH-REPORT | DE102017113343 |
| INTERNATIONAL-SEARCH-REPORT | KR101496902B |
| INTERNATIONAL-SEARCH-REPORT | US2015128397 |
| OPPOSITION | DE102010045010 |
| OPPOSITION | DE102017113343 |
| OPPOSITION | DE102018109934 |
| OPPOSITION | DE102018113685 |
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
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 22, 2025
Nov 19, 2025
Nov 14, 2025
(Electronic) Receipt
Appeal
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Nov 14, 2025
Reply to appeal
Appeal
Aug 5, 2025
Jul 17, 2025
Jul 14, 2025
(Electronic) Receipt
Appeal
Jul 14, 2025
Jul 14, 2025
Jul 14, 2025
Jun 12, 2025
Jun 12, 2025
Jun 5, 2025
(Electronic) Receipt
Appeal
Jun 5, 2025
Jun 5, 2025
Notice of appeal
Appeal
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Means of redress
OPPO
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Apr 10, 2025
Feb 6, 2025
Jan 13, 2025
Jan 10, 2025
Jan 10, 2025
Jan 10, 2025
Dec 13, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 6, 2024
Dec 3, 2024
Dec 3, 2024
Dec 3, 2024
May 29, 2024
May 24, 2024
May 24, 2024
May 24, 2024
May 23, 2024
May 17, 2024
May 17, 2024
May 17, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
May 3, 2024
Dec 22, 2023
Dec 19, 2023
Dec 19, 2023
Dec 19, 2023
Aug 9, 2023
Aug 9, 2023
Jul 31, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Jul 25, 2023
Nov 8, 2022
Sep 29, 2022
Decision to grant a European patent
Search/Exam
Sep 12, 2022
(Electronic) Receipt
Search/Exam
Sep 12, 2022
English translation of the claims
Search/Exam
Sep 12, 2022
Filing of the translations of the claims
Search/Exam
Sep 12, 2022
French translation of claims
Search/Exam
May 12, 2022
May 12, 2022
May 12, 2022
Intention to grant (signatures)
Search/Exam
May 12, 2022
Text intended for grant (clean copy)
Search/Exam
May 12, 2022
Apr 4, 2022
Examination started
Search/Exam
Jan 26, 2022
Jan 18, 2022
Annexes in respect of a client data request
Search/Exam
Jan 18, 2022
Annexes in respect of a client data request
Search/Exam
Jan 18, 2022
Jan 12, 2022
Jan 7, 2022
Annexes in respect of a client data request
Search/Exam
Jan 7, 2022
Jul 26, 2021
Feb 24, 2021
Jan 19, 2021
Communication to designated inventor
Search/Exam
Jan 19, 2021
Communication to designated inventor
Search/Exam
Jan 19, 2021
Communication to designated inventor
Search/Exam
Jan 19, 2021
Communication to designated inventor
Search/Exam
Jan 19, 2021
Communication to designated inventor
Search/Exam
Jan 19, 2021
Communication to designated inventor
Search/Exam
Jan 19, 2021
Communication to designated inventor
Search/Exam
Jan 19, 2021
Dec 17, 2020
(Electronic) Receipt
Search/Exam
Dec 17, 2020
Dec 17, 2020
Priority search results
Search/Exam
Dec 17, 2020
Request for entry into the European phase
Search/Exam
Aug 3, 2020
Aug 3, 2020
Aug 3, 2020
Aug 3, 2020
Aug 3, 2020
Aug 3, 2020
Jul 16, 2020
Copy of the international search report
Search/Exam
Jul 16, 2020
Copy of the international search report
Search/Exam
Jul 16, 2020
Published international application - A1
Search/Exam
Mar 23, 2020
Mar 20, 2020
Feb 18, 2020
Feb 18, 2020
Feb 18, 2020
Feb 18, 2020
Feb 18, 2020
Feb 18, 2020
Feb 18, 2020
Feb 14, 2020
(Electronic) Receipt
PCTRO
Dec 10, 2019
Dec 10, 2019
Nov 25, 2019
(Electronic) Receipt
PCTRO
Nov 25, 2019
Abstract
PCTRO
Nov 25, 2019
Claims
PCTRO
Nov 25, 2019
Description
PCTRO
Nov 25, 2019
Nov 25, 2019
Drawings
PCTRO
Nov 25, 2019