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The patent EP2231543 was granted to Saint Gobain on Sep 12, 2018. The application was filed on Dec 4, 2008 under application number EP08863743A. 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 |
|---|---|---|---|
| OCV CAPITAL | Jun 12, 2019 | HASELTINE LAKE KEMPNER | WITHDRAWN |
| URSA INSULATION | Jun 11, 2019 | PLASSERAUD | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | EP1382642 |
| INTERNATIONAL-SEARCH-REPORT | EP1849486 |
| INTERNATIONAL-SEARCH-REPORT | US2005215153 |
| INTERNATIONAL-SEARCH-REPORT | US2204384 |
| INTERNATIONAL-SEARCH-REPORT | US2210119 |
| INTERNATIONAL-SEARCH-REPORT | US2378378 |
| INTERNATIONAL-SEARCH-REPORT | US3340083 |
| INTERNATIONAL-SEARCH-REPORT | US5895804 |
| INTERNATIONAL-SEARCH-REPORT | US6613378 |
| INTERNATIONAL-SEARCH-REPORT | WO9626164 |
| INTERNATIONAL-SEARCH-REPORT | WO9802496 |
| OPPOSITION | EP0583086 |
| OPPOSITION | EP0826710 |
| OPPOSITION | EP0990727 |
| OPPOSITION | EP1382642 |
| OPPOSITION | US2004038017 |
| OPPOSITION | US2004254285 |
| OPPOSITION | US2005215153 |
| OPPOSITION | US2007004835 |
| OPPOSITION | US2007142596 |
| OPPOSITION | US5318990 |
| OPPOSITION | US5427587 |
| OPPOSITION | US5661213 |
| OPPOSITION | US5977232 |
| OPPOSITION | US6613378 |
| OPPOSITION | US7026390 |
| OPPOSITION | WO0047811 |
| OPPOSITION | WO03106561 |
| OPPOSITION | WO2004061038 |
| OPPOSITION | WO2004076734 |
| OPPOSITION | WO2006120523 |
| OPPOSITION | WO2006136614 |
| OPPOSITION | WO2007129202 |
| OPPOSITION | WO2008053332 |
| OPPOSITION | WO2008089851 |
| OPPOSITION | WO2009080938 |
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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(Electronic) Receipt
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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(Electronic) Receipt
Appeal
Apr 15, 2022
Authorisation
Appeal
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(Electronic) Receipt
Appeal
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Mar 30, 2022
(Electronic) Receipt
Appeal
Mar 30, 2022
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
Jan 25, 2022
(Electronic) Receipt
Appeal
Jan 25, 2022
Authorisation
Appeal
Jan 25, 2022
General authorisation
Appeal
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(Electronic) Receipt
Appeal
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Claims
Appeal
Nov 19, 2021
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Sep 28, 2021
Refund of fees
Appeal
Sep 23, 2021
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(Electronic) Receipt
Appeal
Sep 17, 2021
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Notice of appeal
Appeal
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Means of redress
OPPO
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Sep 24, 2018
Aug 17, 2018
Decision to grant a European patent
Search/Exam
Jul 31, 2018
(Electronic) Receipt
Search/Exam
Jul 31, 2018
English translation of the claims
Search/Exam
Jul 31, 2018
Filing of the translations of the claims
Search/Exam
Jul 31, 2018
German translation of the claims
Search/Exam
Jul 31, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 20, 2018
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Intention to grant (signatures)
Search/Exam
Apr 20, 2018
Text intended for grant (clean copy)
Search/Exam
Apr 20, 2018
Oct 4, 2017
(Electronic) Receipt
Search/Exam
Oct 4, 2017
Amended claims with annotations
Search/Exam
Oct 4, 2017
Claims
Search/Exam
Oct 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 4, 2017
Jul 26, 2017
Jul 21, 2017
Apr 5, 2017
Annex to the communication
Search/Exam
Apr 5, 2017
Communication from the Examining Division
Search/Exam
Mar 24, 2017
Examination started
Search/Exam
Feb 1, 2017
Jan 25, 2017
Observations by third parties
Search/Exam
Jan 2, 2017
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Deficiencies in an enquiry
Search/Exam
Dec 12, 2016
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Oct 10, 2016
Sep 1, 2010
Aug 27, 2010
Reply to Written Opinion prepared by the EPO
Search/Exam
Aug 23, 2010
Reply to Written Opinion prepared by the EPO
Search/Exam
Jul 22, 2010
Jun 24, 2010
Jun 3, 2010
(Electronic) Receipt
Search/Exam
Jun 3, 2010
Request for entry into the European phase
Search/Exam
May 10, 2010
Information on entry into European phase
Search/Exam
Sep 17, 2009
Copy of the international search report
Search/Exam
Sep 17, 2009
Jul 31, 2009
Jul 31, 2009
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Jul 22, 2009
Jul 2, 2009
Published international application - A2
Search/Exam
May 20, 2009
May 15, 2009
Apr 10, 2009
Dec 4, 2008
Abstract
PCTISA
Dec 4, 2008
Annex
PCTISA
Dec 4, 2008
Claims
PCTISA
Dec 4, 2008
Description
PCTISA