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The patent EP3785036 was granted to GD on Jul 23, 2025. The application was originally filed on Mar 21, 2019 under application number EP19721052A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN203941232U |
| INTERNATIONAL-SEARCH-REPORT | WO2016119171 |
| INTERNATIONAL-SEARCH-REPORT | WO2016127327 |
| OPPOSITION | US2003030459 |
| OPPOSITION | US2013074724 |
| OPPOSITION | US3408565 |
| OPPOSITION | US4818933 |
| OPPOSITION | US5237510 |
| OPPOSITION | US5969752 |
| OPPOSITION | US6094061 |
| OPPOSITION | US6563301 |
| OPPOSITION | US6876107 |
| OPPOSITION | US9586760 |
| OPPOSITION | WO2004103792 |
| OPPOSITION | WO2015007342 |
| OPPOSITION | WO2016119171 |
| OPPOSITION | WO2016127327 |
| OPPOSITION | WO2016207136 |
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
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Jun 26, 2025
Jun 26, 2025
Jun 17, 2025
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Apr 11, 2025
Refund of fees
Search/Exam
Apr 10, 2025
Apr 10, 2025
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(Electronic) Receipt
Appeal
Apr 3, 2025
Apr 3, 2025
Withdrawal of an appeal
Appeal
Feb 25, 2025
Feb 25, 2025
Feb 20, 2025
(Electronic) Receipt
Appeal
Feb 20, 2025
Feb 20, 2025
Notice of appeal
Appeal
Dec 20, 2024
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OPPO
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May 17, 2022
Apr 7, 2022
Decision to grant a European patent
Search/Exam
Mar 25, 2022
(Electronic) Receipt
Search/Exam
Mar 25, 2022
Filing of the translations of the claims
Search/Exam
Mar 25, 2022
French translation of claims
Search/Exam
Mar 25, 2022
German translation of the claims
Search/Exam
Jan 25, 2022
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Intention to grant (signatures)
Search/Exam
Jan 25, 2022
Text intended for grant (clean copy)
Search/Exam
Jan 25, 2022
Dec 13, 2021
Examination started
Search/Exam
May 12, 2021
(Electronic) Receipt
Search/Exam
May 12, 2021
May 12, 2021
Amendments received before examination
Search/Exam
May 12, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2021
(Electronic) Receipt
Search/Exam
Apr 1, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 1, 2021
Letter concerning the inventor
Search/Exam
Mar 22, 2021
Mar 15, 2021
Letter which had not been notified
Search/Exam
Feb 3, 2021
Dec 1, 2020
Nov 27, 2020
Communication to designated inventor
Search/Exam
Nov 27, 2020
Communication to designated inventor
Search/Exam
Nov 27, 2020
Communication to designated inventor
Search/Exam
Nov 27, 2020
Communication to designated inventor
Search/Exam
Nov 27, 2020
Communication to designated inventor
Search/Exam
Nov 9, 2020
Oct 6, 2020
(Electronic) Receipt
Search/Exam
Oct 6, 2020
Request for entry into the European phase
Search/Exam
Sep 4, 2020
Information on entry into European phase
Search/Exam
Nov 18, 2019
Oct 31, 2019
Copy of the international search report
Search/Exam
Oct 31, 2019
Published international application - A1
Search/Exam
Jul 22, 2019
ISR: cited documents
PCTISA
Jul 22, 2019
Jul 22, 2019
Jul 22, 2019
May 14, 2019
May 3, 2019
Abstract
PCTISA
May 3, 2019
Claims
PCTISA
May 3, 2019
Description
PCTISA
May 3, 2019
Drawings
PCTISA
May 3, 2019
May 3, 2019
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Jan 3, 2019
Priority search results copy provided by EPO
Search/Exam