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The patent EP2970070 was granted to DOW Technology Investments on Feb 21, 2018. The application was filed on Mar 12, 2014 under application number EP14719915A. 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 |
|---|---|---|---|
| BASF | Nov 21, 2018 | MEISSNER BOLTE PARTNERSCHAFT MBB | ADMISSIBLE |
| SCIENTIFIC DESIGN | Nov 21, 2018 | HOEFER & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
| SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ | Nov 20, 2018 | SHELL LEGAL SERVICES | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP2155708 |
| DESCRIPTION | US2007129557 |
| DESCRIPTION | US2010036176 |
| DESCRIPTION | US3950507 |
| DESCRIPTION | US4761394 |
| DESCRIPTION | US4766105 |
| DESCRIPTION | US4808738 |
| DESCRIPTION | US4820675 |
| DESCRIPTION | US4833261 |
| DESCRIPTION | US4908343 |
| DESCRIPTION | US4916243 |
| DESCRIPTION | US4994587 |
| DESCRIPTION | US5059481 |
| DESCRIPTION | US5102848 |
| DESCRIPTION | US5187140 |
| DESCRIPTION | US5504053 |
| DESCRIPTION | US6080897 |
| DESCRIPTION | US6511938 |
| DESCRIPTION | US6727389 |
| DESCRIPTION | US7193094 |
| DESCRIPTION | US7237677 |
| DESCRIPTION | US8362284 |
| DESCRIPTION | US8389751 |
| DESCRIPTION | US8546592 |
| DESCRIPTION | WO2004007873 |
| DESCRIPTION | WO2004007874 |
| DESCRIPTION | WO2008054564 |
| INTERNATIONAL-SEARCH-REPORT | US2010036176 |
| INTERNATIONAL-SEARCH-REPORT | US2010267974 |
| INTERNATIONAL-SEARCH-REPORT | WO2012050819 |
| OPPOSITION | EP2155708 |
| OPPOSITION | GB402749 |
| OPPOSITION | JP2009120495 |
| OPPOSITION | US1998878 |
| OPPOSITION | US2007129557 |
| OPPOSITION | US2008281118 |
| OPPOSITION | US2009281345 |
| OPPOSITION | US2010036176 |
| OPPOSITION | US2010267974 |
| OPPOSITION | US2011034710 |
| OPPOSITION | US2011160470 |
| OPPOSITION | US2011281724 |
| OPPOSITION | US2012323026 |
| OPPOSITION | US4761394 |
| OPPOSITION | US4766105 |
| OPPOSITION | US7193094 |
| OPPOSITION | US7235677 |
| OPPOSITION | US8546592 |
| OPPOSITION | WO03044002 |
| OPPOSITION | WO2004078736 |
| OPPOSITION | WO2004078737 |
| OPPOSITION | WO2010123844 |
| OPPOSITION | WO2010123856 |
| OPPOSITION | WO2012050819 |
| OPPOSITION | WO2012141942 |
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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Jan 14, 2025
Refund of fees
Appeal
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Appeal
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Withdrawal of an appeal
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Authorisation
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Letter accompanying subsequently filed items
Search/Exam
Jun 9, 2024
Letter relating to Appeal Procedure
Search/Exam
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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Appeal
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Appeal
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Claims
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Jul 3, 2018
Letter accompanying subsequently filed items
Search/Exam
Mar 9, 2018
Jan 25, 2018
Decision to grant a European patent
Search/Exam
Jan 11, 2018
(Electronic) Receipt
Search/Exam
Jan 11, 2018
Filing of the translations of the claims
Search/Exam
Jan 11, 2018
French translation of claims
Search/Exam
Jan 11, 2018
German translation of the claims
Search/Exam
Jan 11, 2018
Letter accompanying subsequently filed items
Search/Exam
Sep 12, 2017
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Sep 12, 2017
Intention to grant (signatures)
Search/Exam
Sep 12, 2017
Text intended for grant (clean copy)
Search/Exam
Sep 12, 2017
Aug 28, 2017
Jul 18, 2017
Jul 4, 2017
(Electronic) Receipt
Search/Exam
Jul 4, 2017
Amended claims with annotations
Search/Exam
Jul 4, 2017
Claims
Search/Exam
Jul 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Jul 4, 2017
May 8, 2017
May 8, 2017
May 8, 2017
Intention to grant (signatures)
Search/Exam
May 8, 2017
Text intended for grant (clean copy)
Search/Exam
May 8, 2017
Apr 11, 2017
Examination started
Search/Exam
Oct 24, 2016
Apr 13, 2016
(Electronic) Receipt
Search/Exam
Apr 13, 2016
Apr 13, 2016
Amended claims with annotations
Search/Exam
Apr 13, 2016
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Amended description with annotations
Search/Exam
Apr 13, 2016
Amendments received before examination
Search/Exam
Apr 13, 2016
Letter accompanying subsequently filed items
Search/Exam
Dec 23, 2015
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Oct 20, 2015
Communication to designated inventor
Search/Exam
Oct 20, 2015
Communication to designated inventor
Search/Exam
Oct 20, 2015
Communication to designated inventor
Search/Exam
Oct 2, 2015
Sep 1, 2015
(Electronic) Receipt
Search/Exam
Sep 1, 2015
Request for entry into the European phase
Search/Exam
Jul 29, 2015
Information on entry into European phase
Search/Exam
Oct 14, 2014
Sep 25, 2014
Copy of the international search report
Search/Exam
Sep 25, 2014
Published international application - A1
Search/Exam
Jul 30, 2014
Jul 30, 2014
Jul 30, 2014
Jun 6, 2014
Annex
PCTISA
Apr 25, 2014
Abstract
PCTISA
Apr 25, 2014
Annex
PCTISA
Apr 25, 2014
Claims
PCTISA
Apr 25, 2014
Description
PCTISA
Apr 25, 2014
Drawings
PCTISA