The weekly litigation news digest is live. Subscribe now
The patent EP3155228 was granted to Siemens on Jun 28, 2023. The application was filed on Aug 27, 2015 under application number EP15762950A. 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 |
|---|---|---|---|
| FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV | Dec 21, 2018 | SPL PATENTANWALTE PARTG MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | DE102008004061 |
| INTERNATIONAL-SEARCH-REPORT | DE2734396 |
| INTERNATIONAL-SEARCH-REPORT | DE4032299 |
| INTERNATIONAL-SEARCH-REPORT | EP0585623 |
| INTERNATIONAL-SEARCH-REPORT | GB867858 |
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
Mar 7, 2024
Refund of fees
OPPO
Mar 5, 2024
Mar 5, 2024
Mar 5, 2024
Oct 9, 2023
Jun 2, 2023
Jun 2, 2023
May 26, 2023
May 23, 2023
May 23, 2023
May 23, 2023
May 23, 2023
Feb 24, 2023
Feb 23, 2023
Feb 23, 2023
Feb 23, 2023
Feb 15, 2023
Feb 1, 2023
Feb 1, 2023
Jan 20, 2023
Refund of fees
OPPO
Jan 18, 2023
Jan 18, 2023
Jan 12, 2023
(Electronic) Receipt
Appeal
Jan 12, 2023
Jan 12, 2023
Jan 12, 2023
Withdrawal of an appeal
Appeal
Jan 10, 2023
Jan 4, 2023
(Electronic) Receipt
Appeal
Jan 4, 2023
Jan 4, 2023
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 16, 2022
Dec 1, 2022
(Electronic) Receipt
Appeal
Dec 1, 2022
Dec 1, 2022
Notice of appeal
Appeal
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Means of redress
OPPO
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 21, 2022
Sep 1, 2022
May 19, 2022
Apr 29, 2022
Apr 20, 2022
Apr 20, 2022
Apr 20, 2022
Mar 29, 2022
Mar 21, 2022
Mar 21, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 16, 2022
Mar 2, 2022
Feb 25, 2022
Nov 22, 2021
Nov 17, 2021
Nov 16, 2021
Nov 16, 2021
Nov 16, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 11, 2021
Nov 4, 2021
Nov 4, 2021
Nov 2, 2021
Oct 22, 2021
Oct 22, 2021
Oct 22, 2021
Apr 23, 2021
Dec 23, 2020
Oct 25, 2019
Oct 11, 2019
Oct 11, 2019
Oct 11, 2019
Oct 11, 2019
Oct 11, 2019
Oct 11, 2019
Oct 4, 2019
Oct 4, 2019
Oct 4, 2019
Oct 4, 2019
Oct 4, 2019
May 21, 2019
May 15, 2019
May 15, 2019
May 15, 2019
Jan 11, 2019
Jan 11, 2019
Jan 7, 2019
Jan 7, 2019
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Dec 21, 2018
Apr 3, 2018
Feb 22, 2018
Decision to grant a European patent
Search/Exam
Feb 6, 2018
(Electronic) Receipt
Search/Exam
Feb 6, 2018
English translation of the claims
Search/Exam
Feb 6, 2018
French translation of claims
Search/Exam
Feb 6, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 31, 2017
Oct 31, 2017
Oct 31, 2017
Intention to grant (signatures)
Search/Exam
Oct 31, 2017
Text intended for grant (clean copy)
Search/Exam
Oct 31, 2017
Oct 6, 2017
Examination started
Search/Exam
Jul 31, 2017
Jul 24, 2017
Apr 5, 2017
Communication to designated inventor
Search/Exam
Apr 5, 2017
Communication to designated inventor
Search/Exam
Apr 5, 2017
Communication to designated inventor
Search/Exam
Apr 5, 2017
Communication to designated inventor
Search/Exam
Apr 5, 2017
Communication to designated inventor
Search/Exam
Apr 5, 2017
Communication to designated inventor
Search/Exam
Apr 5, 2017
Communication to designated inventor
Search/Exam
Apr 5, 2017
Communication to designated inventor
Search/Exam
Mar 22, 2017
Mar 7, 2017
Feb 17, 2017
Feb 11, 2017
Priority search results copy provided by EPO
Search/Exam
Jan 13, 2017
Information on entry into European phase
Search/Exam
Jan 12, 2017
(Electronic) Receipt
Search/Exam
Jan 12, 2017
Request for entry into the European phase
Search/Exam
Oct 19, 2016
Oct 19, 2016
Oct 19, 2016
Oct 19, 2016
Oct 19, 2016
Jul 5, 2016
Notification of election of EPO
Search/Exam
Jun 27, 2016
Jun 20, 2016
Jun 9, 2016
Jun 9, 2016
PCT demand form
PCT2
Jun 9, 2016
Jun 9, 2016
Mar 30, 2016
Mar 10, 2016
Copy of the international search report
Search/Exam
Mar 10, 2016
Copy of the international search report
Search/Exam
Mar 10, 2016
Published international application - A1
Search/Exam
Oct 13, 2015
Oct 13, 2015
Oct 13, 2015
Sep 23, 2015
Aug 27, 2015
(Electronic) Receipt
PCTRO
Aug 27, 2015
Abstract
PCTRO
Aug 27, 2015
Claims
PCTRO
Aug 27, 2015
Description
PCTRO
Aug 27, 2015
Aug 27, 2015
Drawings
PCTRO
Aug 27, 2015
Aug 27, 2015