The weekly litigation news digest is live. Subscribe now
The patent EP3141374 was granted to Graf Synergy on Nov 28, 2018. The application was filed on Mar 4, 2013 under application number EP16193166A. 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 |
|---|---|---|---|
| EMMEGI | Aug 28, 2019 | LOSCH | ADMISSIBLE |
| URBAN MASCHINENBAU | Aug 28, 2019 | PATENTANWALTE OLBRICHT | ADMISSIBLE |
| KABAN MAKINA SANVE TIC STI | Aug 6, 2019 | HERRMANN | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | DE19958412 |
| OPPOSITION | DE2433533 |
| OPPOSITION | DE3039733 |
| OPPOSITION | EP2064052 |
| OPPOSITION | EP2179837 |
| OPPOSITION | FR2078436 |
| OPPOSITION | GB2246318 |
| OPPOSITION | GB2350318 |
| OPPOSITION | GB2376657 |
| OPPOSITION | US3902943 |
| OPPOSITION | US4752350 |
| SEARCH | DE10148265 |
| SEARCH | DE19906340 |
| SEARCH | DE19958412 |
| SEARCH | DE2433533 |
| SEARCH | DE2923453 |
| SEARCH | DE2923935 |
| SEARCH | DE3039733 |
| SEARCH | EP0264052 |
| SEARCH | FR1401370 |
| SEARCH | FR2078436 |
| SEARCH | GB2246318 |
| SEARCH | GB2376657 |
| SEARCH | JPS498942B |
| SEARCH | US3902943 |
| SEARCH | WO2012016991 |
| SEARCH | WO2014122572 |
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
Dec 23, 2025
(Electronic) Receipt
Appeal
Dec 23, 2025
(Electronic) Receipt
Appeal
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 23, 2025
Dec 22, 2025
Dec 19, 2025
(Electronic) Receipt
Appeal
Dec 19, 2025
Dec 19, 2025
Dec 16, 2025
Dec 10, 2025
(Electronic) Receipt
Appeal
Dec 10, 2025
Dec 10, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Nov 4, 2025
Oct 28, 2025
(Electronic) Receipt
Appeal
Oct 28, 2025
(Electronic) Receipt
Appeal
Oct 28, 2025
Oct 28, 2025
Notice of appeal
Appeal
Oct 28, 2025
Notice of appeal
Appeal
Oct 28, 2025
Notice of appeal
Appeal
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 19, 2025
Sep 17, 2025
Sep 17, 2025
Sep 17, 2025
Sep 11, 2025
Sep 11, 2025
Sep 11, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Means of redress
OPPO
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Aug 28, 2025
Jun 25, 2025
Apr 30, 2025
Apr 30, 2025
Apr 30, 2025
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 28, 2025
Apr 28, 2025
Apr 28, 2025
Apr 25, 2025
Apr 25, 2025
Apr 25, 2025
Apr 25, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 24, 2025
Apr 23, 2025
Apr 23, 2025
Apr 23, 2025
Apr 22, 2025
Apr 22, 2025
Apr 22, 2025
Apr 17, 2025
Apr 17, 2025
Apr 17, 2025
Apr 14, 2025
Apr 14, 2025
Apr 14, 2025
Sep 17, 2024
Sep 17, 2024
Sep 17, 2024
Sep 10, 2024
Sep 10, 2024
Sep 10, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
Sep 5, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Jul 3, 2024
Mar 26, 2024
Mar 26, 2024
Mar 26, 2024
Mar 26, 2024
Mar 26, 2024
Mar 11, 2024
Mar 4, 2024
(Electronic) Receipt
Appeal
Mar 4, 2024
Mar 4, 2024
Feb 23, 2024
Feb 20, 2024
Feb 16, 2024
(Electronic) Receipt
Appeal
Feb 16, 2024
Feb 16, 2024
Feb 16, 2024
Feb 16, 2024
Feb 16, 2024
Feb 16, 2024
Feb 13, 2024
(Electronic) Receipt
Appeal
Feb 13, 2024
Feb 13, 2024
Feb 7, 2024
Feb 7, 2024
Feb 7, 2024
Feb 7, 2024
Feb 7, 2024
Feb 7, 2024
Feb 7, 2024
Feb 2, 2024
(Electronic) Receipt
Appeal
Feb 2, 2024
Feb 2, 2024
Jan 30, 2024
Jan 30, 2024
Jan 30, 2024
Jan 30, 2024
Jan 24, 2024
Jan 24, 2024
Jan 24, 2024
Jan 18, 2024
Apr 21, 2023
Advice of delivery
Appeal
Apr 21, 2023
Apr 18, 2023
Advice of delivery
Appeal
Apr 17, 2023
(Electronic) Receipt
Appeal
Apr 17, 2023
Advice of delivery
Appeal
Apr 17, 2023
Apr 17, 2023
Apr 17, 2023
Apr 17, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 14, 2023
Apr 11, 2023
Jan 26, 2023
May 17, 2022
May 12, 2022
(Electronic) Receipt
Appeal
May 12, 2022
May 12, 2022
Apr 12, 2022
Mar 21, 2022
Mar 7, 2022
(Electronic) Receipt
Appeal
Mar 7, 2022
Mar 7, 2022
Mar 7, 2022
Mar 7, 2022
Mar 7, 2022
Mar 7, 2022
Reply to appeal
Appeal
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 28, 2021
Oct 21, 2021
(Electronic) Receipt
Appeal
Oct 21, 2021
Oct 21, 2021
Oct 14, 2021
(Electronic) Receipt
Appeal
Oct 14, 2021
Oct 14, 2021
Oct 14, 2021
Oct 14, 2021
Oct 14, 2021
Oct 6, 2021
(Electronic) Receipt
Appeal
Oct 6, 2021
Oct 6, 2021
Oct 6, 2021
Aug 16, 2021
Aug 16, 2021
Aug 16, 2021
Aug 16, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Aug 11, 2021
Aug 10, 2021
(Electronic) Receipt
Appeal
Aug 10, 2021
Aug 10, 2021
Notice of appeal
Appeal
Aug 6, 2021
(Electronic) Receipt
Appeal
Aug 6, 2021
(Electronic) Receipt
Appeal
Aug 6, 2021
(Electronic) Receipt
Appeal
Aug 6, 2021
Aug 6, 2021
Aug 6, 2021
Aug 6, 2021
Aug 6, 2021
Notice of appeal
Appeal
Aug 6, 2021
Notice of appeal
Appeal
Aug 4, 2021
Aug 4, 2021
Aug 4, 2021
Aug 4, 2021
Jul 30, 2021
(Electronic) Receipt
Appeal
Jul 30, 2021
Jul 30, 2021
Notice of appeal
Appeal
Jun 21, 2021
Jun 18, 2021
Jun 16, 2021
Jun 15, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Means of redress
OPPO
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Jun 14, 2021
Mar 3, 2021
Feb 24, 2021
Feb 24, 2021
Authorisation
OPPO
Feb 24, 2021
Feb 24, 2021
Feb 4, 2021
Feb 4, 2021
Feb 4, 2021
Feb 1, 2021
Feb 1, 2021
Feb 1, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 15, 2021
Jan 4, 2021
Jan 4, 2021
Jan 4, 2021
Dec 29, 2020
Dec 29, 2020
Dec 29, 2020
Oct 13, 2020
Oct 13, 2020
Oct 13, 2020
Jul 23, 2020
Jul 23, 2020
Jul 23, 2020
Jul 8, 2020
Jul 8, 2020
Jul 8, 2020
Jul 8, 2020
Jul 8, 2020
Jul 6, 2020
Jun 30, 2020
May 12, 2020
May 12, 2020
May 11, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
May 8, 2020
Jan 27, 2020
Jan 27, 2020
Jan 27, 2020
Jan 21, 2020
Jan 21, 2020
Jan 21, 2020
Jan 21, 2020
Jan 21, 2020
Jan 21, 2020
Nov 8, 2019
Nov 5, 2019
Nov 5, 2019
Authorisation
OPPO
Nov 5, 2019
Nov 5, 2019
Oct 4, 2019
Communication of amended entries
Search/Exam
Sep 11, 2019
Sep 11, 2019
Sep 11, 2019
Sep 11, 2019
Sep 10, 2019
Request concerning representative opponent
Search/Exam
Sep 6, 2019
Sep 6, 2019
Sep 5, 2019
Sep 5, 2019
Sep 5, 2019
Sep 5, 2019
Sep 5, 2019
Sep 4, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 28, 2019
Aug 12, 2019
Aug 6, 2019
Aug 6, 2019
Authorisation
OPPO
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Aug 6, 2019
Dec 10, 2018
Nov 2, 2018
Decision to grant a European patent
Search/Exam
Oct 12, 2018
(Electronic) Receipt
Search/Exam
Oct 12, 2018
Filing of the translations of the claims
Search/Exam
Oct 12, 2018
French translation of claims
Search/Exam
Oct 12, 2018
German translation of the claims
Search/Exam
Oct 12, 2018
Letter accompanying subsequently filed items
Search/Exam
Jul 11, 2018
Jul 11, 2018
Jul 11, 2018
Intention to grant (signatures)
Search/Exam
Jul 11, 2018
Text intended for grant (clean copy)
Search/Exam
Jul 11, 2018
May 30, 2018
Examination started
Search/Exam
Sep 12, 2017
(Electronic) Receipt
Search/Exam
Sep 12, 2017
Sep 12, 2017
Amended claims with annotations
Search/Exam
Sep 12, 2017
Sep 12, 2017
Amended description with annotations
Search/Exam
Sep 12, 2017
Amendments received before examination
Search/Exam
Sep 12, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 20, 2017
Feb 15, 2017
Notification of forthcoming publication
Search/Exam
Feb 15, 2017
Refund of fees
Search/Exam
Feb 9, 2017
Feb 9, 2017
European search opinion
Search/Exam
Feb 9, 2017
European search report
Search/Exam
Feb 9, 2017
Information on Search Strategy
Search/Exam
Feb 1, 2017
Search started
Search/Exam
Dec 2, 2016
Communication to designated inventor
Search/Exam
Nov 4, 2016
Oct 10, 2016
Abstract
Search/Exam
Oct 10, 2016
Oct 10, 2016
Annex
Search/Exam
Oct 10, 2016
Annex
Search/Exam
Oct 10, 2016
Claims
Search/Exam
Oct 10, 2016
Description
Search/Exam
Oct 10, 2016
Designation of inventor
Search/Exam
Oct 10, 2016
Drawings
Search/Exam
Oct 10, 2016
Matter concerning the application
Search/Exam
Oct 10, 2016
Priority search results
Search/Exam
Oct 10, 2016
Priority search results
Search/Exam
Oct 10, 2016
Priority search results
Search/Exam
Oct 10, 2016
Priority search results
Search/Exam
Oct 10, 2016
Request for grant of a European patent
Search/Exam
Oct 23, 2014
Letter concerning the priority
Search/Exam
Oct 23, 2014
Letter concerning the priority
Search/Exam
Oct 23, 2014
Letter concerning the priority
Search/Exam
Oct 23, 2014
Letter concerning the priority
Search/Exam