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The patent EP3407852 was granted to Entegris on Mar 27, 2024. The application was filed on Jan 27, 2017 under application number EP17706011A. 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 |
|---|---|---|---|
| WESS | Dec 3, 2021 | SSM SANDMAIR | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2006246244 |
| INTERNATIONAL-SEARCH-REPORT | US2011097563 |
| OPPOSITION | US2006246244 |
| OPPOSITION | US2008199645 |
| OPPOSITION | US2012284991 |
| OPPOSITION | US5911340 |
| OPPOSITION | US7207153 |
| OPPOSITION | US8273070 |
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
Dec 18, 2020
(Electronic) Receipt
Search/Exam
Dec 18, 2020
Filing of the translations of the claims
Search/Exam
Dec 18, 2020
French translation of claims
Search/Exam
Dec 18, 2020
German translation of the claims
Search/Exam
Dec 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 21, 2020
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Intention to grant (signatures)
Search/Exam
Oct 21, 2020
Text intended for grant (clean copy)
Search/Exam
Oct 21, 2020
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(Electronic) Receipt
Search/Exam
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Enquiry as to the processing of the file
Search/Exam
Oct 5, 2020
Letter accompanying subsequently filed items
Search/Exam
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(Electronic) Receipt
Search/Exam
Dec 6, 2019
Amended claims with annotations
Search/Exam
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Amended description with annotations
Search/Exam
Dec 6, 2019
Claims
Search/Exam
Dec 6, 2019
Description
Search/Exam
Dec 6, 2019
Letter accompanying subsequently filed items
Search/Exam
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Annex to the communication
Search/Exam
Nov 14, 2019
Communication from the Examining Division
Search/Exam
Nov 8, 2019
Examination started
Search/Exam
Mar 25, 2019
(Electronic) Receipt
Search/Exam
Mar 25, 2019
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Amended claims with annotations
Search/Exam
Mar 25, 2019
Amendments received before examination
Search/Exam
Mar 25, 2019
Letter accompanying subsequently filed items
Search/Exam
Nov 22, 2018
(Electronic) Receipt
Search/Exam
Nov 22, 2018
Annex
Search/Exam
Nov 22, 2018
Letter accompanying subsequently filed items
Search/Exam
Nov 22, 2018
Matter concerning the application
Search/Exam
Nov 7, 2018
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Letter which had not been notified
Search/Exam
Sep 21, 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
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Communication to designated inventor
Search/Exam
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Communication to designated inventor
Search/Exam
Sep 14, 2018
Communication to designated inventor
Search/Exam
Aug 29, 2018
(Electronic) Receipt
Search/Exam
Aug 29, 2018
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Request for entry into the European phase
Search/Exam
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Notification of the recording of a change
Search/Exam
Aug 15, 2018
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Information on entry into European phase
Search/Exam
May 31, 2018
Submission concerning representation
Search/Exam
Aug 23, 2017
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Copy of the international search report
Search/Exam
Aug 3, 2017
Published international application - A1
Search/Exam
May 30, 2017
Annex
PCTISA
May 30, 2017
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ISR: cited documents
PCTISA
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Abstract
PCTISA
Feb 13, 2017
Annex
PCTISA
Feb 13, 2017
Claims
PCTISA
Feb 13, 2017
Description
PCTISA
Feb 13, 2017
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PCTISA
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