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The patent EP3923349 was granted to Solaero on Jul 19, 2023. The application was filed on Jan 17, 2018 under application number EP21187462A. 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 |
|---|---|---|---|
| AZUR SPACE SOLAR POWER | Apr 17, 2024 | KOCH | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0313365 |
| DESCRIPTION | EP3133650 |
| DESCRIPTION | EP3159942 |
| DESCRIPTION | EP3159943 |
| DESCRIPTION | US2009078309 |
| DESCRIPTION | US2016380142 |
| DESCRIPTION | US4667059 |
| DESCRIPTION | US8962993 |
| EXAMINATION | WO2004022820 |
| OTHER | DE102008034711 |
| OTHER | EP2919276 |
| OTHER | EP3159942 |
| OTHER | EP3159943 |
| OTHER | US2009078309 |
| OTHER | US2014076401 |
| OTHER | US2016380142 |
| OTHER | US2017069779 |
| OTHER | US6660928 |
| OTHER | US9853189 |
| OTHER | WO2004022820 |
| SEARCH | EP3159942 |
| SEARCH | EP3159943 |
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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Nov 20, 2025
Nov 17, 2025
(Electronic) Receipt
Appeal
Nov 17, 2025
(Electronic) Receipt
Appeal
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Nov 17, 2025
Aug 29, 2025
Aug 28, 2025
Aug 28, 2025
Aug 27, 2025
(Electronic) Receipt
Appeal
Aug 27, 2025
Aug 27, 2025
Aug 25, 2025
(Electronic) Receipt
Appeal
Aug 25, 2025
Notice of appeal
Appeal
Aug 25, 2025
Notice of appeal
Appeal
Jul 16, 2025
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Means of redress
OPPO
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Description
OPPO
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Description
OPPO
Sep 30, 2024
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Aug 1, 2023
Jun 22, 2023
Decision to grant a European patent
Search/Exam
Jun 13, 2023
(Electronic) Receipt
Search/Exam
Jun 13, 2023
French translation of claims
Search/Exam
Jun 13, 2023
German translation of the claims
Search/Exam
Jun 13, 2023
Letter accompanying subsequently filed items
Search/Exam
Feb 9, 2023
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Feb 9, 2023
Intention to grant (signatures)
Search/Exam
Feb 9, 2023
Text intended for grant (clean copy)
Search/Exam
Feb 9, 2023
Oct 25, 2022
(Electronic) Receipt
Search/Exam
Oct 25, 2022
Amended claims with annotations
Search/Exam
Oct 25, 2022
Amended description with annotations
Search/Exam
Oct 25, 2022
Claims
Search/Exam
Oct 25, 2022
Description
Search/Exam
Oct 25, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 25, 2022
Jul 11, 2022
Matter concerning the application
Search/Exam
Jul 8, 2022
Matter concerning the application
Search/Exam
Jul 8, 2022
Non-scannable object
Search/Exam
Jul 8, 2022
Non-scannable object
Search/Exam
Jul 4, 2022
Jul 4, 2022
Jul 1, 2022
(Electronic) Receipt
Search/Exam
Jul 1, 2022
Citation filed by a third party
Search/Exam
Jul 1, 2022
Letter accompanying subsequently filed items
Search/Exam
Jun 29, 2022
Non-patent literature filed by a third party
Search/Exam
Jun 29, 2022
Observations by third parties
Search/Exam
Jun 20, 2022
Annex to the communication
Search/Exam
Jun 20, 2022
Communication from the Examining Division
Search/Exam
Jun 10, 2022
Examination started
Search/Exam
Jun 10, 2022
Matter concerning the application
Search/Exam
Jun 10, 2022
Non-scannable object
Search/Exam
Jun 10, 2022
Non-scannable object
Search/Exam
Jun 9, 2022
Jun 9, 2022
Jun 2, 2022
Non-patent literature filed by a third party
Search/Exam
Jun 2, 2022
Observations by third parties
Search/Exam
Mar 7, 2022
Feb 15, 2022
(Electronic) Receipt
Search/Exam
Feb 15, 2022
Feb 15, 2022
Amended claims with annotations
Search/Exam
Feb 15, 2022
Feb 15, 2022
Amended description with annotations
Search/Exam
Feb 15, 2022
Amendments received before examination
Search/Exam
Feb 15, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 20, 2021
Nov 17, 2021
Notification of forthcoming publication
Search/Exam
Oct 29, 2021
Refund of fees
Search/Exam
Oct 26, 2021
Oct 26, 2021
European search opinion
Search/Exam
Oct 26, 2021
European search report
Search/Exam
Oct 26, 2021
Information on Search Strategy
Search/Exam
Oct 18, 2021
Search started
Search/Exam
Jul 23, 2021
Abstract
Search/Exam
Jul 23, 2021
Jul 23, 2021
Claims
Search/Exam
Jul 23, 2021
Description
Search/Exam
Jul 23, 2021
Designation of inventor
Search/Exam
Jul 23, 2021
Drawings
Search/Exam
Jul 23, 2021
Request for grant of a European patent
Search/Exam