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The patent EP2426091 was granted to Shin Etsu Chemical on Sep 6, 2023. The application was filed on Aug 31, 2011 under application number EP11179625A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| CORNING INCORPORATED | Aug 28, 2018 | ELKINGTON AND FIFE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | JP2004315351 |
| DESCRIPTION | JP2005022954 |
| DESCRIPTION | JP2008182220 |
| DESCRIPTION | JP2008505043 |
| DESCRIPTION | JP2008505827 |
| DESCRIPTION | US7053017 |
| DESCRIPTION | WO2005114328 |
| DESCRIPTION | WO2006004169 |
| OPPOSITION | EP1795506 |
| OPPOSITION | US2010003609 |
| OPPOSITION | US4367085 |
| OPPOSITION | US6849114 |
| OPPOSITION | WO2004089839 |
| SEARCH | JPS59174535 |
| SEARCH | US2002148256 |
| SEARCH | US2003091308 |
| SEARCH | US2004182114 |
| SEARCH | US2007042893 |
| SEARCH | US2007134566 |
| SEARCH | US2010003609 |
| SEARCH | US4367085 |
| SEARCH | WO03077038 |
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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Aug 10, 2023
Aug 10, 2023
Aug 4, 2023
Jun 14, 2023
Jun 14, 2023
Description
OPPO
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
Jun 14, 2023
Jun 7, 2023
Jun 7, 2023
May 30, 2023
May 30, 2023
May 30, 2023
Mar 17, 2023
Mar 17, 2023
Mar 17, 2023
Mar 15, 2023
Refund of fees
Appeal
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 13, 2023
Mar 10, 2023
Mar 10, 2023
Feb 21, 2023
(Electronic) Receipt
Appeal
Feb 21, 2023
Feb 21, 2023
Feb 21, 2023
Feb 10, 2023
Feb 9, 2023
Feb 7, 2023
(Electronic) Receipt
Appeal
Feb 7, 2023
Feb 7, 2023
Feb 6, 2023
(Electronic) Receipt
Appeal
Feb 6, 2023
(Electronic) Receipt
Appeal
Feb 6, 2023
Feb 6, 2023
Feb 6, 2023
Feb 6, 2023
Jan 30, 2023
Jan 30, 2023
Jan 30, 2023
Jan 25, 2023
(Electronic) Receipt
Appeal
Jan 25, 2023
Jan 25, 2023
Jan 20, 2023
Jan 20, 2023
Oct 25, 2022
Oct 19, 2022
(Electronic) Receipt
Appeal
Oct 19, 2022
Oct 19, 2022
Sep 8, 2022
Sep 8, 2022
Sep 8, 2022
Jun 23, 2022
Jun 23, 2022
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Sep 21, 2021
Jun 11, 2021
Jun 8, 2021
(Electronic) Receipt
Appeal
Jun 8, 2021
Jun 8, 2021
Jun 8, 2021
Nov 11, 2020
Nov 6, 2020
(Electronic) Receipt
Appeal
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Nov 6, 2020
Claims
Appeal
Nov 6, 2020
Claims
Appeal
Nov 6, 2020
Nov 6, 2020
Reply to appeal
Appeal
Nov 6, 2020
Reply to appeal
Appeal
Jun 26, 2020
Jun 22, 2020
(Electronic) Receipt
Appeal
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Jun 22, 2020
Apr 1, 2020
Apr 1, 2020
Mar 27, 2020
(Electronic) Receipt
Appeal
Mar 27, 2020
Mar 27, 2020
Notice of appeal
Appeal
Mar 19, 2020
Feb 26, 2020
Feb 26, 2020
Feb 26, 2020
Feb 26, 2020
Feb 21, 2020
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Means of redress
OPPO
Feb 21, 2020
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Claims
OPPO
Nov 22, 2019
Claims
OPPO
Nov 22, 2019
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Sep 6, 2018
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Aug 28, 2018
Aug 28, 2018
Dec 7, 2017
Nov 6, 2017
Decision to grant a European patent
Search/Exam
Oct 25, 2017
Oct 18, 2017
(Electronic) Receipt
Search/Exam
Oct 18, 2017
Filing of the translations of the claims
Search/Exam
Oct 18, 2017
French translation of claims
Search/Exam
Oct 18, 2017
German translation of the claims
Search/Exam
Oct 18, 2017
Letter accompanying subsequently filed items
Search/Exam
Jun 21, 2017
Jun 21, 2017
Jun 21, 2017
Intention to grant (signatures)
Search/Exam
Jun 21, 2017
Text intended for grant (clean copy)
Search/Exam
Jun 21, 2017
Mar 24, 2017
Examination started
Search/Exam
Dec 12, 2016
Nov 24, 2016
Nov 22, 2016
(Electronic) Receipt
Search/Exam
Nov 22, 2016
Enquiry as to the processing of the file
Search/Exam
Nov 22, 2016
Letter accompanying subsequently filed items
Search/Exam
May 11, 2015
Submission concerning representation
Search/Exam
May 8, 2015
Submission concerning representation
Search/Exam
Oct 29, 2012
Oct 23, 2012
(Electronic) Receipt
Search/Exam
Oct 23, 2012
General enquiry
Search/Exam
Oct 23, 2012
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2012
Sep 6, 2012
(Electronic) Receipt
Search/Exam
Sep 6, 2012
Amended claims with annotations
Search/Exam
Sep 6, 2012
Amended description with annotations
Search/Exam
Sep 6, 2012
Amendments received before examination
Search/Exam
Sep 6, 2012
Claims
Search/Exam
Sep 6, 2012
Letter accompanying subsequently filed items
Search/Exam
Mar 28, 2012
(Electronic) Receipt
Search/Exam
Mar 28, 2012
Letter accompanying subsequently filed items
Search/Exam
Mar 12, 2012
Feb 8, 2012
Notification of forthcoming publication
Search/Exam
Dec 1, 2011
Dec 1, 2011
European search opinion
Search/Exam
Dec 1, 2011
European search report
Search/Exam
Nov 23, 2011
Nov 2, 2011
Sep 19, 2011
Payment of fees and costs
Search/Exam
Aug 31, 2011
Abstract
Search/Exam
Aug 31, 2011
Aug 31, 2011
Claims
Search/Exam
Aug 31, 2011
Description
Search/Exam
Aug 31, 2011
Designation of inventor
Search/Exam
Aug 31, 2011
Designation of inventor
Search/Exam
Aug 31, 2011
Designation of inventor
Search/Exam
Aug 31, 2011
Designation of inventor
Search/Exam
Aug 31, 2011
Drawings
Search/Exam
Aug 31, 2011
Request for grant of a European patent
Search/Exam
Aug 31, 2011
Submission concerning representation
Search/Exam