The weekly litigation news digest is live. Subscribe now
The patent EP3148816 was granted to Papierfabrik August Koehler on Feb 26, 2020. The application was filed on May 28, 2015 under application number EP15726926A. 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 |
|---|---|---|---|
| MITSUBISHI HITEC PAPER EUROPE | Nov 26, 2020 | EISENFUHR SPEISER | - |
| WIBBELMANN | Sep 16, 2020 | - | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE10196052T |
| DESCRIPTION | EP0620122 |
| DESCRIPTION | WO0035679 |
| DESCRIPTION | WO2014080615 |
| EXAMINATION | EP2957427 |
| EXAMINATION | EP3000608 |
| EXAMINATION | EP3053753 |
| INTERNATIONAL-SEARCH-REPORT | EP0620122 |
| INTERNATIONAL-SEARCH-REPORT | EP1535748 |
| INTERNATIONAL-SEARCH-REPORT | WO2014080615 |
| INTERNATIONAL-SEARCH-REPORT | WO2014126018 |
| INTERNATIONAL-SEARCH-REPORT | WO2014189044 |
| OPPOSITION | CA1240839 |
| OPPOSITION | DE10196052T |
| OPPOSITION | EP1208994 |
| OPPOSITION | JP2001054979 |
| OPPOSITION | JP2001287461 |
| OPPOSITION | JP2012504442 |
| OPPOSITION | US2002045548 |
| OPPOSITION | US5071821 |
| OPPOSITION | US5164356 |
| OPPOSITION | WO02084029 |
| OPPOSITION | WO2008025479 |
| OTHER | DE10196052T |
| OTHER | WO0026037 |
| OTHER | WO02084029 |
| OTHER | WO2008025479 |
| OTHER | WO2014080615 |
| OTHER | WO2014126018 |
| OTHER | WO2014189044 |
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
Nov 25, 2025
Refund of fees
Appeal
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 21, 2025
Nov 17, 2025
Nov 14, 2025
(Electronic) Receipt
Appeal
Nov 14, 2025
Nov 14, 2025
Oct 20, 2025
Oct 16, 2025
(Electronic) Receipt
Appeal
Oct 16, 2025
Oct 16, 2025
Oct 16, 2025
Oct 15, 2025
(Electronic) Receipt
Appeal
Oct 15, 2025
Oct 15, 2025
Aug 5, 2025
Aug 1, 2025
(Electronic) Receipt
Appeal
Aug 1, 2025
Aug 1, 2025
Jul 14, 2025
Jul 14, 2025
Jul 14, 2025
Nov 26, 2024
Nov 19, 2024
(Electronic) Receipt
Appeal
Nov 19, 2024
Nov 19, 2024
Nov 7, 2024
Nov 4, 2024
(Electronic) Receipt
Appeal
Nov 4, 2024
Nov 4, 2024
Oct 22, 2024
Oct 22, 2024
Oct 22, 2024
Oct 17, 2024
Oct 17, 2024
Oct 10, 2024
Oct 9, 2024
Oct 8, 2024
May 24, 2024
May 24, 2024
May 24, 2024
May 22, 2024
May 22, 2024
May 21, 2024
May 16, 2024
(Electronic) Receipt
Appeal
May 16, 2024
May 16, 2024
May 16, 2024
May 6, 2024
May 6, 2024
May 6, 2024
Apr 30, 2024
Apr 30, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 23, 2024
Jan 18, 2024
Jan 10, 2024
Jul 27, 2023
Jul 27, 2023
Jul 24, 2023
(Electronic) Receipt
Appeal
Jul 24, 2023
Jul 24, 2023
Reply to appeal
Appeal
Jul 6, 2023
Jul 6, 2023
Jul 3, 2023
(Electronic) Receipt
Appeal
Jul 3, 2023
Reply to appeal
Appeal
Jul 3, 2023
Mar 28, 2023
Mar 28, 2023
Mar 24, 2023
Mar 20, 2023
Mar 20, 2023
Mar 16, 2023
Mar 13, 2023
(Electronic) Receipt
Appeal
Mar 13, 2023
Mar 13, 2023
Mar 3, 2023
(Electronic) Receipt
Appeal
Mar 3, 2023
Mar 3, 2023
Mar 3, 2023
Jan 11, 2023
Jan 11, 2023
Jan 11, 2023
Jan 4, 2023
(Electronic) Receipt
Appeal
Jan 4, 2023
Jan 4, 2023
Notice of appeal
Appeal
Oct 31, 2022
Oct 27, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Means of redress
OPPO
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 26, 2022
Oct 11, 2022
Oct 11, 2022
Oct 6, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Oct 4, 2022
Aug 16, 2022
Aug 16, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Aug 5, 2022
Jul 28, 2022
Jul 28, 2022
Jul 21, 2022
Jul 21, 2022
Authorisation
OPPO
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jul 21, 2022
Jun 28, 2022
Jun 17, 2022
Jun 17, 2022
Jun 17, 2022
Jul 15, 2021
Jul 15, 2021
Jul 14, 2021
Jul 9, 2021
Jul 9, 2021
Jul 9, 2021
Jul 8, 2021
Jul 8, 2021
Jul 7, 2021
Jul 7, 2021
Jul 7, 2021
Jul 7, 2021
Mar 30, 2021
Mar 30, 2021
Mar 25, 2021
Mar 25, 2021
Mar 25, 2021
Mar 25, 2021
Mar 25, 2021
Dec 9, 2020
Dec 9, 2020
Dec 9, 2020
Dec 1, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Nov 26, 2020
Sep 22, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Sep 16, 2020
Mar 9, 2020
Jan 30, 2020
Decision to grant a European patent
Search/Exam
Jan 20, 2020
(Electronic) Receipt
Search/Exam
Jan 20, 2020
English translation of the claims
Search/Exam
Jan 20, 2020
Filing of the translations of the claims
Search/Exam
Jan 20, 2020
French translation of claims
Search/Exam
Jan 20, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 9, 2019
Oct 9, 2019
Oct 9, 2019
Intention to grant (signatures)
Search/Exam
Oct 9, 2019
Text intended for grant (clean copy)
Search/Exam
Oct 9, 2019
Aug 13, 2019
Aug 7, 2019
Observations by third parties
Search/Exam
Jul 11, 2019
(Electronic) Receipt
Search/Exam
Jul 11, 2019
Amended claims with annotations
Search/Exam
Jul 11, 2019
Amended description with annotations
Search/Exam
Jul 11, 2019
Claims
Search/Exam
Jul 11, 2019
Description
Search/Exam
Jul 11, 2019
Letter accompanying subsequently filed items
Search/Exam
Jul 11, 2019
Mar 14, 2019
Annex to the communication
Search/Exam
Mar 14, 2019
Communication from the Examining Division
Search/Exam
Mar 12, 2019
Mar 6, 2019
Observations by third parties
Search/Exam
Dec 17, 2018
(Electronic) Receipt
Search/Exam
Dec 17, 2018
Letter accompanying subsequently filed items
Search/Exam
Dec 17, 2018
Oct 25, 2018
Oct 19, 2018
(Electronic) Receipt
Search/Exam
Oct 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2018
Jun 11, 2018
Annex to the communication
Search/Exam
Jun 11, 2018
Communication from the Examining Division
Search/Exam
Mar 8, 2018
(Electronic) Receipt
Search/Exam
Mar 8, 2018
Amended claims with annotations
Search/Exam
Mar 8, 2018
Claims
Search/Exam
Mar 8, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 8, 2018
Mar 8, 2018
Nov 28, 2017
Annex to the communication
Search/Exam
Nov 28, 2017
Communication from the Examining Division
Search/Exam
Nov 28, 2017
Nov 21, 2017
Examination started
Search/Exam
Oct 30, 2017
(Electronic) Receipt
Search/Exam
Oct 30, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 30, 2017
Priority search results
Search/Exam
Oct 30, 2017
Sep 4, 2017
Jul 27, 2017
(Electronic) Receipt
Search/Exam
Jul 27, 2017
Jul 27, 2017
Amended claims with annotations
Search/Exam
Jul 27, 2017
Amendments received before examination
Search/Exam
Jul 27, 2017
Letter accompanying subsequently filed items
Search/Exam
May 3, 2017
Apr 24, 2017
Observations by third parties
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Apr 24, 2017
Patent document filed by a Third party
Search/Exam
Mar 8, 2017
Jan 17, 2017
Jan 13, 2017
Communication to designated inventor
Search/Exam
Dec 12, 2016
Nov 28, 2016
(Electronic) Receipt
Search/Exam
Nov 28, 2016
Request for entry into the European phase
Search/Exam
Oct 7, 2016
Information on entry into European phase
Search/Exam
Aug 11, 2016
Aug 11, 2016
Aug 11, 2016
Notification of the recording of a change
Search/Exam
Jan 4, 2016
Dec 3, 2015
Copy of the international search report
Search/Exam
Dec 3, 2015
Copy of the international search report
Search/Exam
Dec 3, 2015
Published international application - A1
Search/Exam
Nov 17, 2015
Aug 24, 2015
ISR: cited documents
PCTISA
Aug 24, 2015
Aug 21, 2015
Aug 21, 2015
Aug 21, 2015
May 28, 2015
(Electronic) Receipt
PCTRO
May 28, 2015
Abstract
PCTRO
May 28, 2015
Claims
PCTRO
May 28, 2015
Description
PCTRO