The weekly litigation news digest is live. Subscribe now
The patent EP3620576 was granted to Hansol Paper on Sep 1, 2021. The application was filed on Jun 11, 2019 under application number EP19808950A. The patent is currently recorded with a legal status of "Revoked".

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 |
|---|---|---|---|
| BILLERUDKORSNAS | Jun 1, 2022 | KRANSELL & WENNBORG KB | ADMISSIBLE |
| KOEHLER INNOVATION & TECHNOLOGY | Jun 1, 2022 | HELD | ADMISSIBLE |
| SAPPI NETHERLANDS SERVICES | May 31, 2022 | SCHMITZ | ADMISSIBLE |
| STORA ENSO OYJ | May 17, 2022 | STEINRUD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2014009413 |
| INTERNATIONAL-SEARCH-REPORT | JP2014181409 |
| INTERNATIONAL-SEARCH-REPORT | JP2017014654 |
| INTERNATIONAL-SEARCH-REPORT | JP5001185B |
| INTERNATIONAL-SEARCH-REPORT | JPH10249978 |
| OPPOSITION | EP3202979 |
| OPPOSITION | EP3342929 |
| OPPOSITION | GB1226461 |
| OPPOSITION | GB2502241 |
| OPPOSITION | JP2013147001 |
| OPPOSITION | US2004241475 |
| OPPOSITION | US2006286294 |
| OPPOSITION | US2010009168 |
| OPPOSITION | US2010239763 |
| OPPOSITION | US2018058010 |
| OPPOSITION | US5837383 |
| OPPOSITION | WO2007106885 |
| OPPOSITION | WO2008037844 |
| OPPOSITION | WO2008148934 |
| OPPOSITION | WO2012061704 |
| OPPOSITION | WO2016170229 |
| OPPOSITION | WO2016195893 |
| SEARCH | EP2777934 |
| SEARCH | US2012114917 |
| SEARCH | WO2015032432 |
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
Feb 22, 2023
Feb 22, 2023
Feb 22, 2023
Feb 22, 2023
Feb 22, 2023
Feb 17, 2023
Nov 15, 2022
Nov 14, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Nov 7, 2022
Oct 28, 2022
Jun 24, 2022
Jun 24, 2022
Jun 24, 2022
Jun 24, 2022
Jun 24, 2022
Jun 13, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
Jun 1, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 31, 2022
May 23, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
May 17, 2022
Sep 14, 2021
Aug 5, 2021
Decision to grant a European patent
Search/Exam
Jul 15, 2021
(Electronic) Receipt
Search/Exam
Jul 15, 2021
Filing of the translations of the claims
Search/Exam
Jul 15, 2021
French translation of claims
Search/Exam
Jul 15, 2021
German translation of the claims
Search/Exam
Jul 15, 2021
Letter accompanying subsequently filed items
Search/Exam
May 20, 2021
May 20, 2021
May 20, 2021
Intention to grant (signatures)
Search/Exam
May 20, 2021
Text intended for grant (clean copy)
Search/Exam
May 20, 2021
Jan 25, 2021
Jan 25, 2021
Jan 22, 2021
(Electronic) Receipt
Search/Exam
Jan 22, 2021
Amended description with annotations
Search/Exam
Jan 22, 2021
Description
Search/Exam
Jan 22, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 22, 2021
Nov 23, 2020
Annex to the communication
Search/Exam
Nov 23, 2020
Communication from the Examining Division
Search/Exam
Oct 6, 2020
(Electronic) Receipt
Search/Exam
Oct 6, 2020
Amended claims with annotations
Search/Exam
Oct 6, 2020
Claims
Search/Exam
Oct 6, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 6, 2020
Aug 11, 2020
Aug 5, 2020
Apr 8, 2020
Annex to the communication
Search/Exam
Apr 8, 2020
Communication from the Examining Division
Search/Exam
Mar 24, 2020
Mar 24, 2020
Information on Search Strategy
Search/Exam
Mar 24, 2020
Supplementary European search report
Search/Exam
Feb 12, 2020
Notification of forthcoming publication
Search/Exam
Jan 22, 2020
Communication to designated inventor
Search/Exam
Jan 22, 2020
Communication to designated inventor
Search/Exam
Jan 22, 2020
Communication to designated inventor
Search/Exam
Jan 22, 2020
Jan 16, 2020
Jan 16, 2020
Copy of the international search report
Search/Exam
Jan 16, 2020
Jan 16, 2020
International publication pamphlet
Search/Exam
Jan 16, 2020
Jan 16, 2020
Jan 7, 2020
Jan 2, 2020
Jan 2, 2020
Dec 16, 2019
Enquiry with the International Bureau
Search/Exam
Dec 4, 2019
(Electronic) Receipt
Search/Exam
Dec 4, 2019
Abstract
Search/Exam
Dec 4, 2019
Dec 4, 2019
Amended claims with annotations
Search/Exam
Dec 4, 2019
Amendments received before examination
Search/Exam
Dec 4, 2019
Annex
Search/Exam
Dec 4, 2019
Claims
Search/Exam
Dec 4, 2019
Description
Search/Exam
Dec 4, 2019
Drawings
Search/Exam
Dec 4, 2019
Request for entry into the European phase
Search/Exam