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The patent EP2519509 was granted to DOW Technology Investments on Jun 7, 2017. The application was filed on Dec 21, 2010 under application number EP10800848A. 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 | Mar 7, 2018 | BASF ASSOCIATION | ADMISSIBLE |
| SCIENTIFIC DESIGN | Mar 7, 2018 | HOEFER & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0352850 |
| DESCRIPTION | US2003162655 |
| DESCRIPTION | US4379134 |
| DESCRIPTION | US4511668 |
| DESCRIPTION | US4761394 |
| DESCRIPTION | US4766105 |
| DESCRIPTION | US4806518 |
| DESCRIPTION | US4808738 |
| DESCRIPTION | US4820675 |
| DESCRIPTION | US4833261 |
| DESCRIPTION | US4908343 |
| DESCRIPTION | US4916243 |
| DESCRIPTION | US5059481 |
| DESCRIPTION | US5063195 |
| DESCRIPTION | US5102848 |
| DESCRIPTION | US511938 |
| DESCRIPTION | US5187140 |
| DESCRIPTION | US5384302 |
| DESCRIPTION | US5504053 |
| DESCRIPTION | US6511938 |
| EXAMINATION | US2895918 |
| INTERNATIONAL-SEARCH-REPORT | EP0266015 |
| INTERNATIONAL-SEARCH-REPORT | EP0352850 |
| INTERNATIONAL-SEARCH-REPORT | EP0357293 |
| INTERNATIONAL-SEARCH-REPORT | US5187140 |
| INTERNATIONAL-SEARCH-REPORT | US5780657 |
| INTERNATIONAL-SEARCH-REPORT | WO0183105 |
| INTERNATIONAL-SEARCH-REPORT | WO0196324 |
| INTERNATIONAL-SEARCH-REPORT | WO2004002972 |
| INTERNATIONAL-SEARCH-REPORT | WO2004092148 |
| OPPOSITION | EP0266015 |
| OPPOSITION | EP0352850 |
| OPPOSITION | EP0357293 |
| OPPOSITION | GB2460514 |
| OPPOSITION | US2895918 |
| OPPOSITION | US5187140 |
| OPPOSITION | US5780657 |
| OPPOSITION | WO0183105 |
| OPPOSITION | WO0196324 |
| OPPOSITION | WO2004002972 |
| OPPOSITION | WO2004092148 |
| OPPOSITION | WO2008144396 |
| OPPOSITION | WO2008144402 |
| OPPOSITION | WO2008144409 |
| OTHER | WO2011082033 |
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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Appeal
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Appeal
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Appeal
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(Electronic) Receipt
Appeal
Mar 28, 2023
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Refund of fees
Appeal
Mar 16, 2023
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Aug 22, 2022
Aug 17, 2022
(Electronic) Receipt
Appeal
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Apr 17, 2020
(Electronic) Receipt
Appeal
Apr 17, 2020
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Reply to appeal
Appeal
Apr 15, 2020
Apr 14, 2020
(Electronic) Receipt
Appeal
Apr 14, 2020
(Electronic) Receipt
Appeal
Apr 14, 2020
Apr 14, 2020
Apr 14, 2020
Reply to appeal
Appeal
Apr 14, 2020
Reply to appeal
Appeal
Dec 3, 2019
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Nov 29, 2019
Nov 26, 2019
(Electronic) Receipt
Appeal
Nov 26, 2019
(Electronic) Receipt
Appeal
Nov 26, 2019
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Appeal
Nov 25, 2019
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Withdrawal of an appeal
Appeal
Oct 4, 2019
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Sep 26, 2019
(Electronic) Receipt
Appeal
Sep 26, 2019
(Electronic) Receipt
Appeal
Sep 26, 2019
(Electronic) Receipt
Appeal
Sep 26, 2019
Advice of delivery
Appeal
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Sep 26, 2019
Notice of appeal
Appeal
Sep 26, 2019
Notice of appeal
Appeal
Sep 26, 2019
Notice of appeal
Appeal
Jul 19, 2019
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OPPO
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OPPO
May 29, 2019
Claims
OPPO
May 29, 2019
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OPPO
Apr 5, 2019
Claims
OPPO
Apr 5, 2019
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OPPO
Apr 5, 2019
Claims
OPPO
Apr 5, 2019
Claims
OPPO
Apr 5, 2019
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
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OPPO
Apr 5, 2019
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OPPO
Apr 5, 2019
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OPPO
Apr 5, 2019
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OPPO
Apr 5, 2019
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Mar 28, 2019
Submission concerning representation
Search/Exam
Feb 21, 2019
Feb 14, 2019
Nov 28, 2018
Nov 16, 2018
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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OPPO
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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OPPO
Jul 31, 2018
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Dec 13, 2017
Dec 8, 2017
Jun 7, 2017
May 11, 2017
Decision to grant a European patent
Search/Exam
May 10, 2017
Refund of fees
Search/Exam
Apr 25, 2017
(Electronic) Receipt
Search/Exam
Apr 25, 2017
Filing of the translations of the claims
Search/Exam
Apr 25, 2017
French translation of claims
Search/Exam
Apr 25, 2017
German translation of the claims
Search/Exam
Jan 9, 2017
Jan 9, 2017
Jan 9, 2017
Intention to grant (signatures)
Search/Exam
Jan 9, 2017
Text intended for grant (clean copy)
Search/Exam
Jan 9, 2017
Nov 14, 2016
(Electronic) Receipt
Search/Exam
Nov 14, 2016
Amended description with annotations
Search/Exam
Nov 14, 2016
Description
Search/Exam
Nov 14, 2016
Letter accompanying subsequently filed items
Search/Exam
Nov 14, 2016
Sep 23, 2016
Annex to the communication
Search/Exam
Sep 23, 2016
Communication from the Examining Division
Search/Exam
Jan 11, 2016
(Electronic) Receipt
Search/Exam
Jan 11, 2016
Amended claims with annotations
Search/Exam
Jan 11, 2016
Annex
Search/Exam
Jan 11, 2016
Annex
Search/Exam
Jan 11, 2016
Annex
Search/Exam
Jan 11, 2016
Claims
Search/Exam
Jan 11, 2016
Letter accompanying subsequently filed items
Search/Exam
Jan 11, 2016
Nov 16, 2015
Nov 11, 2015
(Electronic) Receipt
Search/Exam
Nov 11, 2015
Letter accompanying subsequently filed items
Search/Exam
Nov 11, 2015
Aug 28, 2015
Annex to the communication
Search/Exam
Aug 28, 2015
Consultation by telephone/in person
Search/Exam
Aug 28, 2015
Jul 23, 2015
Annex to a communication
Search/Exam
Jul 23, 2015
Annex to the communication
Search/Exam
Jul 23, 2015
Communication from the Examining Division
Search/Exam
May 6, 2015
(Electronic) Receipt
Search/Exam
May 6, 2015
Amended claims with annotations
Search/Exam
May 6, 2015
Annex
Search/Exam
May 6, 2015
Claims
Search/Exam
May 6, 2015
Letter accompanying subsequently filed items
Search/Exam
May 6, 2015
Jan 21, 2015
Annex to the communication
Search/Exam
Jan 21, 2015
Communication from the Examining Division
Search/Exam
Jan 8, 2015
Dec 19, 2014
Observations by third parties
Search/Exam
Mar 17, 2014
Mar 7, 2014
Nov 22, 2013
(Electronic) Receipt
Search/Exam
Nov 22, 2013
Letter accompanying subsequently filed items
Search/Exam
Nov 22, 2013
Aug 22, 2013
Annex to the communication
Search/Exam
Aug 22, 2013
Communication from the Examining Division
Search/Exam
Aug 15, 2013
Examination started
Search/Exam
Oct 10, 2012
Sep 28, 2012
(Electronic) Receipt
Search/Exam
Sep 28, 2012
Sep 28, 2012
Amended claims with annotations
Search/Exam
Sep 28, 2012
Amendments received before examination
Search/Exam
Sep 28, 2012
Letter accompanying subsequently filed items
Search/Exam
Aug 29, 2012
Jul 18, 2012
Jul 27, 2011
Jul 7, 2011
Copy of the international search report
Search/Exam
Jul 7, 2011
Published international application - A1
Search/Exam
Jul 5, 2011
Information regarding early processing
Search/Exam
Jun 9, 2011
(Electronic) Receipt
Search/Exam
Jun 9, 2011
Request for entry into the European phase
Search/Exam
Mar 18, 2011
Mar 18, 2011
Mar 18, 2011
Jan 10, 2011
Abstract
PCTISA
Jan 10, 2011
Claims
PCTISA
Jan 10, 2011
Description
PCTISA
Jan 10, 2011
Drawings
PCTISA
Jan 10, 2011