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The patent EP1874622 was granted to Saint Gobain on Sep 29, 2021. The application was filed on Apr 24, 2006 under application number EP06743836A. 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 |
|---|---|---|---|
| EDUARD KRONENBERG | Jul 15, 2019 | ERNICKE PATENT UND RECHTSANWALTE PARTMBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1144791 |
| DESCRIPTION | FR2787135 |
| EXAMINATION | FR2787135 |
| EXAMINATION | WO02101188 |
| INTERNATIONAL-SEARCH-REPORT | DE19607294 |
| INTERNATIONAL-SEARCH-REPORT | DE3338125 |
| INTERNATIONAL-SEARCH-REPORT | EP1698455 |
| INTERNATIONAL-SEARCH-REPORT | US6275157 |
| INTERNATIONAL-SEARCH-REPORT | WO0036261 |
| OPPOSITION | DE10317914 |
| OPPOSITION | DE69909653T |
| OPPOSITION | EP1144791 |
| OPPOSITION | EP1698455 |
| OPPOSITION | JP2001040961 |
| OPPOSITION | JP2004326573 |
| OPPOSITION | JPH09287369 |
| OPPOSITION | JPH1116014 |
| OPPOSITION | US6275157 |
| OPPOSITION | WO2006114211 |
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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Sep 2, 2021
Sep 2, 2021
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Claims
OPPO
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Authorisation
OPPO
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Nov 12, 2018
Oct 5, 2018
Decision to grant a European patent
Search/Exam
Sep 20, 2018
(Electronic) Receipt
Search/Exam
Sep 20, 2018
English translation of the claims
Search/Exam
Sep 20, 2018
Filing of the translations of the claims
Search/Exam
Sep 20, 2018
German translation of the claims
Search/Exam
Sep 20, 2018
Letter accompanying subsequently filed items
Search/Exam
May 30, 2018
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Intention to grant (signatures)
Search/Exam
May 30, 2018
Text intended for grant (clean copy)
Search/Exam
May 30, 2018
Dec 1, 2017
(Electronic) Receipt
Search/Exam
Dec 1, 2017
Amended claims with annotations
Search/Exam
Dec 1, 2017
Amended description with annotations
Search/Exam
Dec 1, 2017
Claims
Search/Exam
Dec 1, 2017
Description
Search/Exam
Dec 1, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 1, 2017
Oct 25, 2017
Oct 19, 2017
(Electronic) Receipt
Search/Exam
Oct 19, 2017
Letter accompanying subsequently filed items
Search/Exam
Oct 19, 2017
Jul 3, 2017
Annex to the communication
Search/Exam
Jul 3, 2017
Communication from the Examining Division
Search/Exam
Apr 14, 2017
(Electronic) Receipt
Search/Exam
Apr 14, 2017
Amended claims with annotations
Search/Exam
Apr 14, 2017
Claims
Search/Exam
Apr 14, 2017
Letter accompanying subsequently filed items
Search/Exam
Apr 14, 2017
Dec 15, 2016
Annex to the communication
Search/Exam
Dec 15, 2016
Communication from the Examining Division
Search/Exam
Nov 17, 2016
Examination started
Search/Exam
Oct 19, 2016
Oct 10, 2016
Aug 1, 2016
Dec 28, 2007
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Nov 14, 2007
Letter concerning the priority
Search/Exam
Nov 14, 2007
Priority document
Search/Exam
Nov 13, 2007
Sep 17, 2007
Sep 17, 2007
Request for entry into the European phase
Search/Exam
Sep 7, 2007
Information on entry into European phase
Search/Exam
Nov 20, 2006
Nov 20, 2006
Nov 2, 2006
Copy of the international search report
Search/Exam
Nov 2, 2006
Copy of the international search report
Search/Exam
Nov 2, 2006
Published international application - A1
Search/Exam
Jul 24, 2006