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The patent EP2155708 was granted to Shell Internationale Research Maatschappij on Feb 21, 2018. The application was filed on May 7, 2008 under application number EP08747766A. 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 |
|---|---|---|---|
| SCIENTIFIC DESIGN | Nov 20, 2018 | HGF | ADMISSIBLE |
| BASF | Nov 16, 2018 | MEISSNER BOLTE PARTNERSCHAFT MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US4761394 |
| DESCRIPTION | US4766105 |
| DESCRIPTION | WO2004002954 |
| DESCRIPTION | WO2004002971 |
| DESCRIPTION | WO2004002972 |
| DESCRIPTION | WO2004078737 |
| DESCRIPTION | WO2004089539 |
| DESCRIPTION | WO2006028940 |
| DESCRIPTION | WO2006102189 |
| EXAMINATION | EP0266015 |
| INTERNATIONAL-SEARCH-REPORT | US4766105 |
| INTERNATIONAL-SEARCH-REPORT | WO2004002954 |
| INTERNATIONAL-SEARCH-REPORT | WO2004002971 |
| INTERNATIONAL-SEARCH-REPORT | WO2004002972 |
| INTERNATIONAL-SEARCH-REPORT | WO2004078737 |
| INTERNATIONAL-SEARCH-REPORT | WO2004089539 |
| INTERNATIONAL-SEARCH-REPORT | WO2006028940 |
| INTERNATIONAL-SEARCH-REPORT | WO2006102189 |
| OPPOSITION | EP0266015 |
| OPPOSITION | US2004110971 |
| OPPOSITION | US2004198992 |
| OPPOSITION | US2006009647 |
| OPPOSITION | US2006014971 |
| OPPOSITION | US2006047130 |
| OPPOSITION | US4766105 |
| OPPOSITION | US5011807 |
| OPPOSITION | US6080897 |
| OPPOSITION | WO0196324 |
| OPPOSITION | WO03044002 |
| OPPOSITION | WO2004002954 |
| OPPOSITION | WO2004002972 |
| OPPOSITION | WO2004078711 |
| OPPOSITION | WO2004078736 |
| OPPOSITION | WO2004078737 |
| OPPOSITION | WO2004089539 |
| OPPOSITION | WO2006091478 |
| OPPOSITION | WO2006102189 |
| OTHER | EP0266015 |
| OTHER | WO2004078736 |
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.
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Description
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Decision to grant a European patent
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Jan 9, 2018
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Search/Exam
Jan 9, 2018
Filing of the translations of the claims
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Jan 9, 2018
French translation of claims
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German translation of the claims
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Oct 26, 2017
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Intention to grant (signatures)
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Oct 26, 2017
Text intended for grant (clean copy)
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Oct 26, 2017
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Jan 24, 2017
Amended description with annotations
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Jan 24, 2017
Description
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Jan 24, 2017
Letter accompanying subsequently filed items
Search/Exam
Jan 24, 2017
Nov 25, 2016
Annex to the communication
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Nov 25, 2016
Communication from the Examining Division
Search/Exam
Dec 21, 2015
(Electronic) Receipt
Search/Exam
Dec 21, 2015
Amended claims with annotations
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Dec 21, 2015
Claims
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Dec 21, 2015
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2015
Aug 24, 2015
Annex to the communication
Search/Exam
Aug 24, 2015
Communication from the Examining Division
Search/Exam
Mar 19, 2015
Patent document filed by a Third party
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Mar 19, 2015
Patent document filed by a Third party
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Mar 19, 2015
Mar 4, 2015
Observations by third parties
Search/Exam
Feb 20, 2012
(Electronic) Receipt
Search/Exam
Feb 20, 2012
Description
Search/Exam
Feb 20, 2012
Letter accompanying subsequently filed items
Search/Exam
Feb 20, 2012
Jan 11, 2012
Dec 22, 2011
(Electronic) Receipt
Search/Exam
Dec 22, 2011
Letter accompanying subsequently filed items
Search/Exam
Dec 22, 2011
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Annex to the communication
Search/Exam
Aug 12, 2011
Communication from the Examining Division
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Sep 10, 2010
(Electronic) Receipt
Search/Exam
Sep 10, 2010
Amended description with annotations
Search/Exam
Sep 10, 2010
Description
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Sep 10, 2010
Letter accompanying subsequently filed items
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Sep 10, 2010
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Sep 3, 2010
Letter accompanying subsequently filed items
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Sep 3, 2010
May 4, 2010
Annex to the communication
Search/Exam
May 4, 2010
Communication from the Examining Division
Search/Exam
Jan 27, 2010
Dec 22, 2009
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(Electronic) Receipt
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Dec 2, 2009
General authorisation
Search/Exam
Dec 2, 2009
Request for entry into the European phase
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Nov 25, 2009
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Information on entry into European phase
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Dec 9, 2008
Nov 20, 2008
Copy of the international search report
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Nov 20, 2008
Published international application - A1
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May 16, 2008
Abstract
PCTISA
May 16, 2008
Claims
PCTISA
May 16, 2008
Description
PCTISA
May 16, 2008