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The patent EP3122571 was granted to MGI Digital Technology on Sep 4, 2024. The application was filed on Mar 23, 2015 under application number EP15711225A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| LEONHARD KURZ STIFTUNG | Nov 19, 2019 | LOUIS POHLAU LOHRENTZ | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0661177 |
| INTERNATIONAL-SEARCH-REPORT | WO2011110956 |
| INTERNATIONAL-SEARCH-REPORT | WO9406624 |
| INTERNATIONAL-SEARCH-REPORT | WO9809815 |
| OPPOSITION | DE3210551 |
| OPPOSITION | DE3511146 |
| OPPOSITION | DE3826216 |
| OPPOSITION | DE4110801 |
| OPPOSITION | EP0089494 |
| OPPOSITION | EP0433575 |
| OPPOSITION | US5565054 |
| OPPOSITION | US5735994 |
| OPPOSITION | WO03020519 |
| OPPOSITION | WO2005120832 |
| OPPOSITION | WO2010072339 |
| OPPOSITION | WO2012159871 |
| OPPOSITION | WO9217338 |
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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Aug 8, 2024
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(Electronic) Receipt
Appeal
Jan 8, 2024
Jan 8, 2024
Dec 15, 2023
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Dec 15, 2023
Dec 11, 2023
Dec 7, 2023
(Electronic) Receipt
Appeal
Dec 7, 2023
Dec 7, 2023
Dec 6, 2023
(Electronic) Receipt
Appeal
Dec 6, 2023
Dec 6, 2023
Nov 28, 2023
Nov 28, 2023
Apr 14, 2023
Advice of delivery
Appeal
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 13, 2023
Apr 7, 2023
Mar 27, 2023
Jul 6, 2022
Apr 20, 2022
Apr 13, 2022
(Electronic) Receipt
Appeal
Apr 13, 2022
Apr 13, 2022
Reply to appeal
Appeal
Dec 17, 2021
Dec 9, 2021
(Electronic) Receipt
Appeal
Dec 9, 2021
Dec 9, 2021
Oct 6, 2021
Oct 6, 2021
Sep 30, 2021
(Electronic) Receipt
Appeal
Sep 30, 2021
Sep 30, 2021
Notice of appeal
Appeal
Aug 4, 2021
Aug 4, 2021
Aug 4, 2021
Aug 2, 2021
Jul 30, 2021
Jul 30, 2021
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Means of redress
OPPO
Jul 30, 2021
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Description
OPPO
Mar 17, 2021
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Claims
OPPO
Apr 3, 2020
Apr 3, 2020
Apr 3, 2020
Dec 2, 2019
Dec 2, 2019
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Mar 4, 2019
Jan 29, 2019
(Electronic) Receipt
Search/Exam
Jan 29, 2019
English translation of the claims
Search/Exam
Jan 29, 2019
Filing of the translations of the claims
Search/Exam
Jan 29, 2019
German translation of the claims
Search/Exam
Jan 24, 2019
Decision to grant a European patent
Search/Exam
Jan 7, 2019
(Electronic) Receipt
Search/Exam
Jan 7, 2019
Filing of the translations of the claims
Search/Exam
Oct 8, 2018
Oct 8, 2018
Oct 8, 2018
Intention to grant (signatures)
Search/Exam
Oct 8, 2018
Text intended for grant
Search/Exam
Aug 23, 2018
(Electronic) Receipt
Search/Exam
Aug 23, 2018
Amended claims with annotations
Search/Exam
Aug 23, 2018
Claims
Search/Exam
Aug 23, 2018
Letter accompanying subsequently filed items
Search/Exam
Aug 23, 2018
Jul 18, 2018
Jul 18, 2018
Jul 18, 2018
Intention to grant (signatures)
Search/Exam
Jul 18, 2018
Text intended for grant
Search/Exam
Feb 19, 2018
(Electronic) Receipt
Search/Exam
Feb 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2017
(Electronic) Receipt
Search/Exam
Dec 14, 2017
Amended claims with annotations
Search/Exam
Dec 14, 2017
Claims
Search/Exam
Dec 14, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 14, 2017
Nov 21, 2017
Annex to the communication
Search/Exam
Nov 21, 2017
Communication from the Examining Division
Search/Exam
Nov 13, 2017
Examination started
Search/Exam
Mar 6, 2017
(Electronic) Receipt
Search/Exam
Mar 6, 2017
Letter accompanying subsequently filed items
Search/Exam
Jan 4, 2017
Nov 23, 2016
(Electronic) Receipt
Search/Exam
Nov 23, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 23, 2016
Matter concerning the application
Search/Exam
Nov 7, 2016
Oct 29, 2016
Priority search results copy provided by EPO
Search/Exam
Oct 28, 2016
Communication to designated inventor
Search/Exam
Oct 28, 2016
Communication to designated inventor
Search/Exam
Oct 11, 2016
Sep 8, 2016
Aug 8, 2016
(Electronic) Receipt
Search/Exam
Aug 8, 2016
Request for entry into the European phase
Search/Exam
Aug 5, 2016
Information on entry into European phase
Search/Exam
Jul 19, 2016
Jul 19, 2016
Notification of the recording of a change
Search/Exam
Oct 21, 2015
Oct 1, 2015
Copy of the international search report
Search/Exam
Oct 1, 2015
Copy of the international search report
Search/Exam
Oct 1, 2015
Published international application - A1
Search/Exam
Apr 24, 2015
Apr 24, 2015
Apr 24, 2015
Mar 23, 2015
(Electronic) Receipt
PCTRO
Mar 23, 2015
Abstract
PCTRO
Mar 23, 2015
Claims
PCTRO
Mar 23, 2015
Description
PCTRO
Mar 23, 2015
Drawings
PCTRO
Mar 23, 2015