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The patent EP1861544 was granted to Stora Enso on Jul 5, 2017. The application was filed on Feb 9, 2006 under application number EP06708158A. 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 | Apr 5, 2018 | KRANSELL & WENNBORG KB | ADMISSIBLE |
| METSA BOARD | Apr 5, 2018 | LAINE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP0511185 |
| INTERNATIONAL-SEARCH-REPORT | FR2550993 |
| INTERNATIONAL-SEARCH-REPORT | GB1405006 |
| INTERNATIONAL-SEARCH-REPORT | US2005257909 |
| INTERNATIONAL-SEARCH-REPORT | US4913773 |
| INTERNATIONAL-SEARCH-REPORT | US5169496 |
| INTERNATIONAL-SEARCH-REPORT | US5603997 |
| INTERNATIONAL-SEARCH-REPORT | WO9526441 |
| INTERNATIONAL-SEARCH-REPORT | WO9902777 |
| OPPOSITION | US2005257909 |
| OPPOSITION | US5603997 |
| OPPOSITION | US5916417 |
| OPPOSITION | US6221212 |
| OPPOSITION | WO9902777 |
| OTHER | EP1861544 |
| OTHER | US2005257909 |
| OTHER | US5603997 |
| OTHER | US5916417 |
| OTHER | US6221212 |
| OTHER | WO9902777 |
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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Jul 7, 2020
Refund of fees
Appeal
Jul 2, 2020
Jul 2, 2020
Jul 2, 2020
Jun 30, 2020
Jun 24, 2020
(Electronic) Receipt
Appeal
Jun 24, 2020
Jun 24, 2020
Withdrawal of an appeal
Appeal
Apr 14, 2020
Apr 14, 2020
Apr 14, 2020
Jan 14, 2020
Sep 11, 2019
Sep 11, 2019
Sep 10, 2019
Sep 10, 2019
Sep 6, 2019
(Electronic) Receipt
Appeal
Sep 6, 2019
Sep 6, 2019
Reply to appeal
Appeal
Sep 4, 2019
(Electronic) Receipt
Appeal
Sep 4, 2019
Sep 4, 2019
Reply to appeal
Appeal
May 13, 2019
May 13, 2019
May 7, 2019
(Electronic) Receipt
Appeal
May 7, 2019
May 7, 2019
Mar 11, 2019
Mar 11, 2019
Mar 11, 2019
Mar 7, 2019
(Electronic) Receipt
Appeal
Mar 7, 2019
Mar 6, 2019
Processing of an appeal
Appeal
Mar 5, 2019
Mar 5, 2019
Mar 4, 2019
(Electronic) Receipt
Appeal
Mar 4, 2019
Mar 4, 2019
Notice of appeal
Appeal
Mar 1, 2019
Feb 25, 2019
Feb 25, 2019
Authorisation
OPPO
Feb 25, 2019
Authorisation
OPPO
Feb 25, 2019
Feb 25, 2019
Jan 22, 2019
Jan 18, 2019
Jan 16, 2019
Jan 14, 2019
Jan 14, 2019
Jan 9, 2019
Jan 9, 2019
Jan 9, 2019
Jan 9, 2019
Jan 9, 2019
Jan 9, 2019
Jan 9, 2019
Jan 9, 2019
Means of redress
OPPO
Apr 25, 2018
Apr 25, 2018
Apr 20, 2018
Apr 20, 2018
Apr 20, 2018
Apr 20, 2018
Apr 17, 2018
Apr 17, 2018
Apr 17, 2018
Apr 16, 2018
Apr 16, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Apr 5, 2018
Jul 5, 2017
Jun 9, 2017
Decision to grant a European patent
Search/Exam
May 11, 2017
Sep 5, 2016
(Electronic) Receipt
Search/Exam
Sep 5, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 5, 2016
Non-patent literature filed by a third party
Search/Exam
Sep 5, 2016
Observations by third parties
Search/Exam
Jun 9, 2016
Filing of the translations of the claims
Search/Exam
Jun 9, 2016
French translation of claims
Search/Exam
Jun 9, 2016
German translation of the claims
Search/Exam
Jun 6, 2016
Jun 3, 2016
Filing of the translations of the claims
Search/Exam
Jun 3, 2016
French translation of claims
Search/Exam
Jun 3, 2016
German translation of the claims
Search/Exam
May 23, 2016
May 19, 2016
May 12, 2016
(Electronic) Receipt
Search/Exam
May 12, 2016
Letter accompanying subsequently filed items
Search/Exam
May 12, 2016
Non-patent literature filed by a third party
Search/Exam
May 12, 2016
Non-patent literature filed by a third party
Search/Exam
May 12, 2016
Observations by third parties
Search/Exam
May 12, 2016
Patent document filed by a Third party
Search/Exam
May 12, 2016
Patent document filed by a Third party
Search/Exam
Feb 16, 2016
Feb 16, 2016
Feb 16, 2016
Intention to grant (signatures)
Search/Exam
Feb 16, 2016
Text intended for grant
Search/Exam
Dec 16, 2015
Amended claims with annotations
Search/Exam
Dec 16, 2015
Amended description with annotations
Search/Exam
Dec 16, 2015
Claims
Search/Exam
Dec 16, 2015
Description
Search/Exam
Dec 16, 2015
Aug 31, 2015
Annex to the communication
Search/Exam
Aug 31, 2015
Communication from the Examining Division
Search/Exam
Jun 26, 2015
Amended claims with annotations
Search/Exam
Jun 26, 2015
Claims
Search/Exam
Jun 26, 2015
Jun 23, 2015
Amended claims with annotations
Search/Exam
Jun 23, 2015
Claims
Search/Exam
Jun 23, 2015
Feb 17, 2015
Annex to the communication
Search/Exam
Feb 17, 2015
Communication from the Examining Division
Search/Exam
Sep 9, 2013
(Electronic) Receipt
Search/Exam
Sep 9, 2013
Amended claims with annotations
Search/Exam
Sep 9, 2013
Claims
Search/Exam
Sep 9, 2013
Letter accompanying subsequently filed items
Search/Exam
Sep 9, 2013
Jun 25, 2013
Jun 22, 2013
Jun 20, 2013
Mar 6, 2013
Annex to the communication
Search/Exam
Mar 6, 2013
Communication from the Examining Division
Search/Exam
Feb 6, 2008
Refund of fees
Search/Exam
Dec 3, 2007
Nov 13, 2007
Nov 7, 2007
Nov 3, 2007
Nov 3, 2007
Nov 3, 2007
Amendments received before examination
Search/Exam
Nov 3, 2007
Matter concerning the application
Search/Exam
Nov 2, 2007
Invitation to file priority document
Search/Exam
Nov 1, 2007
Nov 1, 2007
Nov 1, 2007
Amendments received before examination
Search/Exam
Oct 17, 2007
Refund order of filing/examination fee
Search/Exam
Oct 8, 2007
Reply by International Bureau
Search/Exam
Oct 1, 2007
Sep 26, 2007
Enquiry with the International Bureau
Search/Exam
Sep 7, 2007
Sep 7, 2007
Request for entry into the European phase
Search/Exam
Aug 20, 2007
Aug 20, 2007
Jul 5, 2007
Notification of election of EPO
Search/Exam
Jun 22, 2007
Information on entry into European phase
Search/Exam
May 31, 2007
May 31, 2007
May 31, 2007
May 31, 2007
May 31, 2007
May 31, 2007
May 31, 2007
May 31, 2007
May 31, 2007
Dec 28, 2006
Dec 28, 2006
Dec 28, 2006
Dec 27, 2006
Dec 11, 2006
Dec 11, 2006
PCT demand form
PCT2
Dec 11, 2006
Dec 11, 2006
Dec 7, 2006
Dec 7, 2006
Dec 7, 2006
PCT demand form
PCT2
Dec 7, 2006
Dec 7, 2006
Aug 17, 2006
Copy of the international search report
Search/Exam
Aug 17, 2006
Published international application - A1
Search/Exam
May 4, 2006
Priority document
Search/Exam
May 4, 2006
Feb 9, 2006
Abstract
PCTRO
Feb 9, 2006
Claims
PCTRO
Feb 9, 2006
Description
PCTRO