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The patent EP2817374 was granted to Knauf Insulation on Jun 28, 2017. The application was filed on Sep 2, 2012 under application number EP12755843A. 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 | Mar 28, 2018 | MEISSNER BOLTE PARTNERSCHAFT MBB | ADMISSIBLE |
| SAINT GOBAIN | Mar 26, 2018 | SAINT GOBAIN RECHERCHE | ADMISSIBLE |
| JOHNS MANVILLE | Mar 22, 2018 | DORR | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2005202224 |
| DESCRIPTION | WO2007014236 |
| DESCRIPTION | WO2009019235 |
| INTERNATIONAL-SEARCH-REPORT | DE1905054 |
| INTERNATIONAL-SEARCH-REPORT | US2011046271 |
| INTERNATIONAL-SEARCH-REPORT | WO2007014236 |
| OPPOSITION | DE1905054 |
| OPPOSITION | EP0492016 |
| OPPOSITION | EP2230222 |
| OPPOSITION | EP2386394 |
| OPPOSITION | EP2457943 |
| OPPOSITION | EP2549006 |
| OPPOSITION | GB928451 |
| OPPOSITION | US1801053 |
| OPPOSITION | US2007027283 |
| OPPOSITION | US2010268000 |
| OPPOSITION | US2011046271 |
| OPPOSITION | US2011060095 |
| OPPOSITION | US6245269 |
| OPPOSITION | WO2007014236 |
| OPPOSITION | WO2010106181 |
| OPPOSITION | WO2011022227 |
| OPPOSITION | WO9837147 |
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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Decision to grant a European patent
Search/Exam
May 22, 2017
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May 22, 2017
Filing of the translations of the claims
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Claims
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Jun 27, 2016
Description
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Jun 27, 2016
Letter accompanying subsequently filed items
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Annex to the communication
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Mar 3, 2016
Communication from the Examining Division
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Sep 30, 2015
Examination started
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Jun 26, 2015
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Jan 16, 2015
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Notice on debiting of fees
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Mar 18, 2014
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Feb 27, 2014
Request for entry into the European phase
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Jan 10, 2014
Information on entry into European phase
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Mar 27, 2013
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Copy of the international search report
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Mar 7, 2013
Published international application - A1
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Feb 18, 2013
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Oct 15, 2012
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PCTRO
Sep 2, 2012
Abstract
PCTRO
Sep 2, 2012
Claims
PCTRO
Sep 2, 2012
Description
PCTRO
Sep 2, 2012
Drawings
PCTRO