The weekly litigation news digest is live. Subscribe now
The patent EP1869284 was granted to Aker Wirth on Dec 26, 2018. The application was filed on Feb 16, 2006 under application number EP06707001A. 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 |
|---|---|---|---|
| BENTEC DRILLING & OILFIELD SYSTEMS | Aug 13, 2019 | WERNER & TEN BRINK | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2004219040 |
| INTERNATIONAL-SEARCH-REPORT | GB1034058 |
| INTERNATIONAL-SEARCH-REPORT | US2004028540 |
| INTERNATIONAL-SEARCH-REPORT | US2004060717 |
| OPPOSITION | US2004219040 |
| OPPOSITION | US2004219042 |
| OPPOSITION | US5246355 |
| OPPOSITION | US879560 |
| OTHER | US2004219040 |
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 28, 2022
Feb 28, 2022
Feb 23, 2022
Dec 15, 2021
Dec 15, 2021
Nov 15, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Means of redress
OPPO
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Nov 12, 2021
Jul 20, 2021
Jun 16, 2021
Jun 16, 2021
Jun 9, 2021
Jun 4, 2021
Jun 4, 2021
May 27, 2021
May 25, 2021
May 25, 2021
May 20, 2021
May 20, 2021
Annex
OPPO
May 20, 2021
May 20, 2021
May 19, 2021
May 19, 2021
May 19, 2021
May 18, 2021
May 18, 2021
May 18, 2021
May 18, 2021
May 18, 2021
May 18, 2021
Mar 23, 2021
Mar 23, 2021
Feb 1, 2021
Feb 1, 2021
Jan 26, 2021
Jan 26, 2021
Jan 26, 2021
Oct 21, 2020
Oct 8, 2020
Oct 6, 2020
Oct 6, 2020
Oct 6, 2020
Sep 30, 2020
Sep 30, 2020
Aug 7, 2020
Jul 10, 2020
Jun 16, 2020
Jun 10, 2020
Jun 10, 2020
Jun 10, 2020
Jun 10, 2020
Jun 4, 2020
Jun 4, 2020
Jun 4, 2020
Jun 4, 2020
Mar 2, 2020
Feb 25, 2020
Feb 25, 2020
Feb 25, 2020
Feb 17, 2020
Feb 10, 2020
Feb 10, 2020
Feb 10, 2020
Feb 10, 2020
Feb 10, 2020
Feb 10, 2020
Feb 10, 2020
Nov 18, 2019
Nov 6, 2019
Oct 9, 2019
Oct 9, 2019
Aug 20, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Aug 13, 2019
Feb 6, 2019
Feb 6, 2019
Jan 31, 2019
(Electronic) Receipt
Search/Exam
Jan 31, 2019
Authorisation
Search/Exam
Jan 31, 2019
Letter accompanying subsequently filed items
Search/Exam
Jan 31, 2019
Jan 9, 2019
Nov 29, 2018
Decision to grant a European patent
Search/Exam
Nov 15, 2018
(Electronic) Receipt
Search/Exam
Nov 15, 2018
English translation of the claims
Search/Exam
Nov 15, 2018
French translation of claims
Search/Exam
Nov 15, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 18, 2018
Sep 18, 2018
Sep 18, 2018
Intention to grant (signatures)
Search/Exam
Sep 18, 2018
Text intended for grant (clean copy)
Search/Exam
Sep 18, 2018
Apr 16, 2018
(Electronic) Receipt
Search/Exam
Apr 16, 2018
Amended claims with annotations
Search/Exam
Apr 16, 2018
Amended description with annotations
Search/Exam
Apr 16, 2018
Claims
Search/Exam
Apr 16, 2018
Description
Search/Exam
Apr 16, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 16, 2018
Feb 2, 2018
Annex to the communication
Search/Exam
Feb 2, 2018
Communication from the Examining Division
Search/Exam
Dec 5, 2016
Amended claims with annotations
Search/Exam
Dec 5, 2016
Amended description with annotations
Search/Exam
Dec 5, 2016
Claims
Search/Exam
Dec 5, 2016
Description
Search/Exam
Dec 5, 2016
Oct 17, 2016
Oct 10, 2016
Aug 22, 2016
Annex to the communication
Search/Exam
Aug 22, 2016
Communication from the Examining Division
Search/Exam
Oct 5, 2015
Sep 30, 2015
Sep 28, 2015
Mar 5, 2015
Mar 2, 2015
Annexes in respect of a client data request
Search/Exam
Mar 2, 2015
Annexes in respect of a client data request
Search/Exam
Mar 2, 2015
Feb 26, 2014
Amended claims with annotations
Search/Exam
Feb 26, 2014
Claims
Search/Exam
Feb 26, 2014
Dec 3, 2013
Nov 27, 2013
Observations by third parties
Search/Exam
Jan 18, 2010
Jan 18, 2010
Nov 18, 2009
Observations by third parties
Search/Exam
Nov 16, 2009
Observations by third parties
Search/Exam
Aug 26, 2009
Jul 17, 2009
Annexes in respect of a client data request
Search/Exam
Jul 17, 2009
May 28, 2009
Matter concerning the application
Search/Exam
Apr 7, 2009
Apr 7, 2009
Mar 27, 2009
Mar 27, 2009
Observations by third parties
Search/Exam
Mar 27, 2009
Mar 24, 2009
Mar 24, 2009
Observations by third parties
Search/Exam
Mar 24, 2009
Dec 12, 2008
Priority document
Search/Exam
Dec 4, 2008
Oct 13, 2008
Oct 6, 2008
Annexes in respect of a client data request
Search/Exam
Oct 6, 2008
General authorisation
Search/Exam
Oct 6, 2008
Letter concerning the priority
Search/Exam
Oct 6, 2008
Priority document
Search/Exam
Oct 4, 2008
Letter concerning the priority
Search/Exam
Oct 2, 2008
Letter concerning the priority
Search/Exam
Sep 6, 2008
Letter concerning the priority
Search/Exam
Sep 4, 2008
Letter concerning the priority
Search/Exam
Sep 2, 2008
Invitation to file priority document
Search/Exam
Jul 9, 2008
Abstract
Search/Exam
Jul 9, 2008
Abstract
Search/Exam
Jul 9, 2008
Claims
Search/Exam
Jul 9, 2008
Claims
Search/Exam
Jul 9, 2008
Description
Search/Exam
Jul 9, 2008
Description
Search/Exam
Jul 9, 2008
Jul 8, 2008
Abstract
Search/Exam
Jul 8, 2008
Abstract
Search/Exam
Jul 8, 2008
Claims
Search/Exam
Jul 8, 2008
Claims
Search/Exam
Jul 8, 2008
Description
Search/Exam
Jul 8, 2008
Description
Search/Exam
Jul 8, 2008
Jun 23, 2008
Jun 18, 2008
Jun 17, 2008
Apr 7, 2008
Final instructions (loss of partial rights)
Search/Exam
Feb 26, 2008
Annex to the communication
Search/Exam
Feb 26, 2008
Communication from the Examining Division
Search/Exam
Jan 19, 2008
Letter concerning fees and payments
Search/Exam
Jan 14, 2008
Reply by International Bureau
Search/Exam
Dec 28, 2007
Enquiry with the International Bureau
Search/Exam
Dec 27, 2007
Nov 28, 2007
Nov 21, 2007
Oct 29, 2007
Oct 18, 2007
Request for entry into the European phase
Search/Exam
Aug 24, 2007
Information on entry into European phase
Search/Exam
Oct 19, 2006
Copy of the international search report
Search/Exam
Oct 19, 2006
Copy of the international search report
Search/Exam
Oct 19, 2006
Published international application - A1
Search/Exam
Jun 1, 2006
Abstract
PCTISA
Mar 20, 2006
Abstract
PCTISA
Mar 20, 2006
Claims
PCTISA
Mar 20, 2006
Description
PCTISA
Mar 20, 2006
Drawings
PCTISA