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The patent EP2566903 was granted to Knauf Insulation on Jul 14, 2021. The application was filed on May 7, 2011 under application number EP11718392A. 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 |
|---|---|---|---|
| ROCKWOOL | Apr 13, 2022 | MEISSNER BOLTE PARTNERSCHAFT MBB | ADMISSIBLE |
| SAINT GOBAIN | Apr 13, 2022 | RENARD | ADMISSIBLE |
| STM | Apr 13, 2022 | BOTTI & FERRARI | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2005202224 |
| DESCRIPTION | US2007027283 |
| DESCRIPTION | US6638882 |
| DESCRIPTION | WO2008089847 |
| DESCRIPTION | WO2008089851 |
| DESCRIPTION | WO2009019235 |
| INTERNATIONAL-SEARCH-REPORT | CA1090026 |
| INTERNATIONAL-SEARCH-REPORT | DE4308089 |
| INTERNATIONAL-SEARCH-REPORT | GB1391172 |
| INTERNATIONAL-SEARCH-REPORT | GB1512066 |
| INTERNATIONAL-SEARCH-REPORT | GB2047258 |
| INTERNATIONAL-SEARCH-REPORT | US1801053 |
| INTERNATIONAL-SEARCH-REPORT | US2198874 |
| INTERNATIONAL-SEARCH-REPORT | US2392105 |
| INTERNATIONAL-SEARCH-REPORT | US2442989 |
| INTERNATIONAL-SEARCH-REPORT | US2518956 |
| INTERNATIONAL-SEARCH-REPORT | US4085076 |
| INTERNATIONAL-SEARCH-REPORT | US4184986 |
| INTERNATIONAL-SEARCH-REPORT | US4186053 |
| INTERNATIONAL-SEARCH-REPORT | US4201857 |
| OPPOSITION | DE1905054 |
| OPPOSITION | DE4308089 |
| OPPOSITION | EP0839826 |
| OPPOSITION | EP1382642 |
| OPPOSITION | EP2386394 |
| OPPOSITION | EP2386605 |
| OPPOSITION | US3513001 |
| OPPOSITION | US4183997 |
| OPPOSITION | US5905115 |
| OPPOSITION | WO0206178 |
| OPPOSITION | WO2004007615 |
| OPPOSITION | WO2007014236 |
| OPPOSITION | WO2009006532 |
| OPPOSITION | WO2009080938 |
| OPPOSITION | WO2011019590 |
| OPPOSITION | WO2011019593 |
| OPPOSITION | WO2011022226 |
| OPPOSITION | WO2011022227 |
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.
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Jun 17, 2021
Decision to grant a European patent
Search/Exam
Jun 17, 2021
Decision to grant a European patent
Search/Exam
Jun 11, 2021
Refund of fees
Search/Exam
Jun 10, 2021
Decision to allow further processing
Search/Exam
Jun 2, 2021
(Electronic) Receipt
Search/Exam
Jun 2, 2021
French translation of claims
Search/Exam
Jun 2, 2021
German translation of the claims
Search/Exam
Jun 2, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 2, 2021
Request for further processing
Search/Exam
Apr 22, 2021
Nov 5, 2020
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Intention to grant (signatures)
Search/Exam
Nov 5, 2020
Text intended for grant (clean copy)
Search/Exam
Nov 5, 2020
Sep 23, 2020
(Electronic) Receipt
Search/Exam
Sep 23, 2020
Amended claims with annotations
Search/Exam
Sep 23, 2020
Amended description with annotations
Search/Exam
Sep 23, 2020
Claims
Search/Exam
Sep 23, 2020
Description
Search/Exam
Sep 23, 2020
Drawings
Search/Exam
Sep 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 23, 2020
Sep 10, 2020
Annex to the communication
Search/Exam
Sep 10, 2020
Communication from the Examining Division
Search/Exam
Nov 18, 2019
(Electronic) Receipt
Search/Exam
Nov 18, 2019
Claims
Search/Exam
Nov 18, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2019
May 6, 2019
Annex to the communication
Search/Exam
May 6, 2019
Communication from the Examining Division
Search/Exam
Aug 23, 2017
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Jul 28, 2014
(Electronic) Receipt
Search/Exam
Jul 28, 2014
Annex
Search/Exam
Jul 28, 2014
Claims
Search/Exam
Jul 28, 2014
Letter accompanying subsequently filed items
Search/Exam
Jul 28, 2014
Jul 11, 2014
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(Electronic) Receipt
Search/Exam
Jul 8, 2014
Letter accompanying subsequently filed items
Search/Exam
Jul 8, 2014
Mar 5, 2014
Annex to the communication
Search/Exam
Mar 5, 2014
Communication from the Examining Division
Search/Exam
Feb 13, 2013
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Letter which had not been notified
Search/Exam
Jan 8, 2013
Dec 18, 2012
Communication to designated inventor
Search/Exam
Dec 18, 2012
Communication to designated inventor
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Communication to designated inventor
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Dec 18, 2012
Communication to designated inventor
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Dec 7, 2012
(Electronic) Receipt
Search/Exam
Dec 7, 2012
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Search/Exam
Dec 7, 2012
Letter accompanying subsequently filed items
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Nov 27, 2012
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(Electronic) Receipt
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Oct 26, 2012
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Amended claims with annotations
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Oct 26, 2012
Request for entry into the European phase
Search/Exam
Sep 14, 2012
Information on entry into European phase
Search/Exam
Dec 5, 2011
Nov 10, 2011
Copy of the international search report
Search/Exam
Nov 10, 2011
Published international application - A1
Search/Exam
Sep 2, 2011
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May 7, 2011
(Electronic) Receipt
PCTRO
May 7, 2011
Abstract
PCTRO
May 7, 2011
Claims
PCTRO
May 7, 2011
Description
PCTRO
May 7, 2011
Drawings
PCTRO