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The patent EP3245046 was granted to Wacker Chemie on Feb 13, 2019. The application was filed on Nov 8, 2016 under application number EP16794994A. 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 |
|---|---|---|---|
| DOW SILICONES | Nov 13, 2019 | MURGITROYD | - |
| MOMENTIVE PERFORMANCE MATERIALS | Nov 13, 2019 | GILLE HRABAL PARTNERSCHAFTSGESELLSCHAFT MBB PATENTANWALTE | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | DE102008000156 |
| DESCRIPTION | DE102008043316 |
| DESCRIPTION | DE102009002231 |
| DESCRIPTION | DE102009027486 |
| DESCRIPTION | DE102010043149 |
| DESCRIPTION | DE102011012412 |
| DESCRIPTION | DE102011012480 |
| DESCRIPTION | DE102013226494 |
| DESCRIPTION | DE3839900 |
| DESCRIPTION | EP0122008 |
| DESCRIPTION | EP0146307 |
| DESCRIPTION | EP0358452 |
| DESCRIPTION | EP0398701 |
| DESCRIPTION | EP0561893 |
| DESCRIPTION | EP0561919 |
| DESCRIPTION | EP0686676 |
| DESCRIPTION | EP1050538 |
| DESCRIPTION | EP1433749 |
| DESCRIPTION | EP1803728 |
| DESCRIPTION | WO2009027133 |
| DESCRIPTION | WO2015059502 |
| DESCRIPTION | WO2015107333 |
| EXAMINATION | WO2016071241 |
| INTERNATIONAL-SEARCH-REPORT | US2009225640 |
| INTERNATIONAL-SEARCH-REPORT | WO2012166870 |
| INTERNATIONAL-SEARCH-REPORT | WO2014018814 |
| INTERNATIONAL-SEARCH-REPORT | WO2015107333 |
| OPPOSITION | CN103937257 |
| OPPOSITION | EP0350951 |
| OPPOSITION | EP1077226 |
| OPPOSITION | US2007141250 |
| OPPOSITION | US2011196096 |
| OPPOSITION | US2017312981 |
| OPPOSITION | US5981610 |
| OPPOSITION | US6121368 |
| OPPOSITION | WO2015107333 |
| OPPOSITION | WO2016071241 |
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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Apr 14, 2022
Apr 5, 2022
Advice of delivery
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
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Feb 25, 2019
Jan 17, 2019
Decision to grant a European patent
Search/Exam
Jan 3, 2019
(Electronic) Receipt
Search/Exam
Jan 3, 2019
English translation of the claims
Search/Exam
Jan 3, 2019
Filing of the translations of the claims
Search/Exam
Jan 3, 2019
French translation of claims
Search/Exam
Jan 3, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 11, 2018
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Intention to grant (signatures)
Search/Exam
Oct 11, 2018
Text intended for grant (clean copy)
Search/Exam
Oct 11, 2018
Aug 29, 2018
Amended claims with annotations
Search/Exam
Aug 29, 2018
Claims
Search/Exam
Aug 29, 2018
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Amended claims with annotations
Search/Exam
Aug 24, 2018
Claims
Search/Exam
Aug 24, 2018
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Jun 13, 2018
Communication to designated inventor
Search/Exam
May 25, 2018
Annex to the communication
Search/Exam
May 25, 2018
Communication from the Examining Division
Search/Exam
May 22, 2018
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(Electronic) Receipt
Search/Exam
Apr 20, 2018
Filing of the translations of the claims
Search/Exam
Apr 20, 2018
Letter accompanying subsequently filed items
Search/Exam
Apr 20, 2018
Translation of the claims
Search/Exam
Apr 20, 2018
Translation of the claims
Search/Exam
Feb 14, 2018
Feb 8, 2018
Observations by third parties
Search/Exam
Jan 4, 2018
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Intention to grant (signatures)
Search/Exam
Jan 4, 2018
Text intended for grant (clean copy)
Search/Exam
Jan 4, 2018
Nov 20, 2017
Examination started
Search/Exam
Nov 8, 2017
Nov 6, 2017
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Oct 25, 2017
Aug 29, 2017
Priority search results copy provided by EPO
Search/Exam
Aug 16, 2017
(Electronic) Receipt
Search/Exam
Aug 16, 2017
Aug 16, 2017
General authorisation
Search/Exam
Aug 16, 2017
Matter concerning the application
Search/Exam
Aug 16, 2017
Request for entry into the European phase
Search/Exam
Jun 7, 2017
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May 23, 2017
Notification of election of EPO
Search/Exam
May 18, 2017
Copy of the international search report
Search/Exam
May 18, 2017
Published international application - A1
Search/Exam
Mar 31, 2017
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PCT demand form
PCT2
Mar 2, 2017
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ISR: cited documents
PCTISA
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(Electronic) Receipt
PCTRO
Nov 8, 2016
Abstract
PCTRO
Nov 8, 2016
Claims
PCTRO
Nov 8, 2016
Description
PCTRO
Nov 8, 2016
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Drawings
PCTRO
Nov 8, 2016