The weekly litigation news digest is live. Subscribe now
The patent EP3844328 was granted to Aurotec on Jun 7, 2023. The application was filed on Aug 30, 2019 under application number EP19758989A. 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 |
|---|---|---|---|
| DOMPATENT VON KREISLER SELTING WERNER PARTNERSCHAFT VON PATENTANWALTEN UND RECHTSANWALTEN MBB | Mar 7, 2024 | DOMPATENT VON KREISLER SELTING WERNER | ADMISSIBLE |
| DOMPATENT VON KREISLER SELTING WERNER PARTNERSCHAFT VON PATENTANWALTEN UND RECHTSANWALTEN MBB | Mar 7, 2024 | DOMPATENT VON PATENT UND RECHTSANWALTEN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CA2057133 |
| DESCRIPTION | CN105887226 |
| DESCRIPTION | CN205133803U |
| DESCRIPTION | CN205258674U |
| DESCRIPTION | DE10200405 |
| DESCRIPTION | DE2913589 |
| DESCRIPTION | EP1900860 |
| DESCRIPTION | US4246221 |
| DESCRIPTION | US4416698 |
| DESCRIPTION | WO0212599 |
| DESCRIPTION | WO0212600 |
| DESCRIPTION | WO03014432 |
| DESCRIPTION | WO2006000197 |
| DESCRIPTION | WO2008019411 |
| DESCRIPTION | WO2014057022 |
| DESCRIPTION | WO9428218 |
| DESCRIPTION | WO9620300 |
| DESCRIPTION | WO9733020 |
| EXAMINATION | DE10223268 |
| EXAMINATION | KR101401148B |
| EXAMINATION | WO9620300 |
| INTERNATIONAL-SEARCH-REPORT | DE10223268 |
| INTERNATIONAL-SEARCH-REPORT | DE19581437 |
| INTERNATIONAL-SEARCH-REPORT | KR101401148B |
| INTERNATIONAL-SEARCH-REPORT | WO0212600 |
| OPPOSITION | DE19744371 |
| OPPOSITION | EP4190952 |
| OPPOSITION | WO0212599 |
| OPPOSITION | WO03057951 |
| OPPOSITION | WO2006000197 |
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
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Means of redress
OPPO
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Jan 9, 2026
Dec 16, 2025
Nov 28, 2025
Oct 22, 2025
Oct 21, 2025
Oct 21, 2025
Oct 21, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Feb 28, 2025
Jan 3, 2025
Dec 20, 2024
Dec 20, 2024
Dec 20, 2024
Sep 26, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
Sep 23, 2024
May 23, 2024
May 23, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
Mar 15, 2024
Mar 13, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Mar 7, 2024
Jun 20, 2023
May 11, 2023
Decision to grant a European patent
Search/Exam
Mar 28, 2023
(Electronic) Receipt
Search/Exam
Mar 28, 2023
English translation of the claims
Search/Exam
Mar 28, 2023
Filing of the translations of the claims
Search/Exam
Mar 28, 2023
French translation of claims
Search/Exam
Mar 28, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 27, 2023
(Electronic) Receipt
Search/Exam
Mar 27, 2023
Letter accompanying subsequently filed items
Search/Exam
Mar 27, 2023
Nov 30, 2022
Nov 30, 2022
Nov 30, 2022
Nov 30, 2022
Intention to grant (signatures)
Search/Exam
Nov 30, 2022
Text intended for grant (clean copy)
Search/Exam
Nov 30, 2022
Jun 15, 2022
Examination started
Search/Exam
Nov 2, 2021
(Electronic) Receipt
Search/Exam
Nov 2, 2021
Nov 2, 2021
Amended claims with annotations
Search/Exam
Nov 2, 2021
Nov 2, 2021
Amended description with annotations
Search/Exam
Nov 2, 2021
Nov 2, 2021
Amendments received before examination
Search/Exam
Nov 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2021
May 7, 2021
May 3, 2021
Apr 30, 2021
Apr 28, 2021
Apr 23, 2021
Priority search results copy provided by EPO
Search/Exam
Apr 22, 2021
Mar 30, 2021
(Electronic) Receipt
Search/Exam
Mar 30, 2021
Request for entry into the European phase
Search/Exam
Mar 15, 2021
Jan 15, 2021
Information on entry into European phase
Search/Exam
Mar 26, 2020
Mar 5, 2020
Copy of the international search report
Search/Exam
Mar 5, 2020
Copy of the international search report
Search/Exam
Mar 5, 2020
Published international application - A1
Search/Exam
Sep 4, 2019
Aug 30, 2019
(Electronic) Receipt
PCTRO
Aug 30, 2019
Abstract
PCTRO
Aug 30, 2019
Claims
PCTRO
Aug 30, 2019
Description
PCTRO
Aug 30, 2019
Aug 30, 2019
Drawings
PCTRO
Aug 30, 2019
Aug 30, 2019