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The patent EP3817926 was granted to Actega North America on Sep 20, 2023. The application was filed on Jul 1, 2019 under application number EP19745002A. 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 |
|---|---|---|---|
| LEONHARD KURZ STIFTUNG | Jun 20, 2024 | ZINSINGER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2016335927 |
| INTERNATIONAL-SEARCH-REPORT | DE102015203196 |
| INTERNATIONAL-SEARCH-REPORT | US2017182705 |
| INTERNATIONAL-SEARCH-REPORT | WO2017208146 |
| OPPOSITION | DE102015203196 |
| OPPOSITION | DE102017207309 |
| OPPOSITION | DE20006315U |
| OPPOSITION | DE3638511 |
| OPPOSITION | EP0820933 |
| OPPOSITION | EP0840271 |
| OPPOSITION | EP0976580 |
| OPPOSITION | JP2006327628 |
| OPPOSITION | US2005067111 |
| OPPOSITION | US2010243139 |
| OPPOSITION | US2017182705 |
| OPPOSITION | US6379766 |
| OPPOSITION | WO0073152 |
| OPPOSITION | WO2009136138 |
| OPPOSITION | WO2013132418 |
| OPPOSITION | WO2016191663 |
| OPPOSITION | WO2017208146 |
| OPPOSITION | WO2018195469 |
| OPPOSITION | WO2018219778 |
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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Dec 18, 2025
Dec 18, 2025
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Means of redress
Search/Exam
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Authorisation
OPPO
Oct 7, 2024
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Oct 4, 2023
Aug 24, 2023
Decision to grant a European patent
Search/Exam
Aug 17, 2023
Decision to allow further processing
Search/Exam
Aug 9, 2023
(Electronic) Receipt
Search/Exam
Aug 9, 2023
Letter accompanying subsequently filed items
Search/Exam
Aug 9, 2023
Aug 9, 2023
Request for further processing
Search/Exam
Jul 11, 2023
Jun 14, 2023
Jun 14, 2023
Jun 9, 2023
(Electronic) Receipt
Search/Exam
Jun 9, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2023
Jun 5, 2023
(Electronic) Receipt
Search/Exam
Jun 5, 2023
(Electronic) Receipt
Search/Exam
Jun 5, 2023
Filing of the translations of the claims
Search/Exam
Jun 5, 2023
French translation of claims
Search/Exam
Jun 5, 2023
German translation of the claims
Search/Exam
Jun 5, 2023
Letter accompanying subsequently filed items
Search/Exam
Jun 5, 2023
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Intention to grant (signatures)
Search/Exam
Feb 8, 2023
Text intended for grant (clean copy)
Search/Exam
Feb 8, 2023
Jan 25, 2023
Examination started
Search/Exam
Aug 10, 2021
(Electronic) Receipt
Search/Exam
Aug 10, 2021
Aug 10, 2021
Amended claims with annotations
Search/Exam
Aug 10, 2021
Aug 10, 2021
Amended description with annotations
Search/Exam
Aug 10, 2021
Amendments received before examination
Search/Exam
Aug 10, 2021
Letter accompanying subsequently filed items
Search/Exam
Apr 14, 2021
Feb 9, 2021
Feb 5, 2021
Communication to designated inventor
Search/Exam
Feb 5, 2021
Communication to designated inventor
Search/Exam
Jan 18, 2021
Dec 16, 2020
(Electronic) Receipt
Search/Exam
Dec 16, 2020
Request for entry into the European phase
Search/Exam
Nov 13, 2020
Information on entry into European phase
Search/Exam
Nov 12, 2020
Nov 12, 2020
Notification of the recording of a change
Search/Exam
Jan 29, 2020
Jan 9, 2020
Copy of the international search report
Search/Exam
Jan 9, 2020
Published international application - A1
Search/Exam
Sep 4, 2019
ISR: cited documents
PCTISA
Sep 4, 2019
Sep 4, 2019
Sep 4, 2019
Aug 8, 2019
Jul 18, 2019
Abstract
PCTISA
Jul 18, 2019
Annex
PCTISA
Jul 18, 2019
Claims
PCTISA
Jul 18, 2019
Description
PCTISA
Jul 18, 2019
Drawings
PCTISA
Jul 18, 2019
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