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Water-Soluble Esterified Cellulose Ethers - EP3271404
The patent EP3271404 was granted to DOW on Jan 9, 2019. The application was originally filed on Mar 8, 2016 under application number EP16714626A. The patent is currently recorded with a legal status of "Opposition Rejected".
EP3271404
- Application Number
- EP16714626A
- Filing Date
- Mar 8, 2016
- Status
- Opposition Rejected
- Aug 6, 2021
- Publication Date
- Jan 9, 2019
- External Links
- Slate, Register, Google Patents
Patent Summary
Patent Family
Patent Oppositions
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 |
|---|---|---|---|
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| SHIN ETSU CHEMICAL | Oct 9, 2019 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
Patent Citations (20) New
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0219426 |
| DESCRIPTION | EP0872233 |
| DESCRIPTION | US3435027 |
| DESCRIPTION | US4226981 |
| DESCRIPTION | US4365060 |
| DESCRIPTION | WO2005115330 |
| DESCRIPTION | WO2011159626 |
| DESCRIPTION | WO2013148154 |
| DESCRIPTION | WO2013164121 |
| DESCRIPTION | WO2014031422 |
| DESCRIPTION | WO2014137777 |
| DESCRIPTION | WO2014137778 |
| INTERNATIONAL-SEARCH-REPORT | WO2011159626 |
| INTERNATIONAL-SEARCH-REPORT | WO2014031422 |
| INTERNATIONAL-SEARCH-REPORT | WO2014137777 |
| INTERNATIONAL-SEARCH-REPORT | WO2014137778 |
| OPPOSITION | EP3091036 |
| OPPOSITION | EP3270970 |
| OPPOSITION | EP3270971 |
| OPPOSITION | EP3270973 |
Dossier Documents
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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Jan 21, 2019
Dec 13, 2018
Decision to grant a European patent
Search/Exam
Nov 28, 2018
(Electronic) Receipt
Search/Exam
Nov 28, 2018
Filing of the translations of the claims
Search/Exam
Nov 28, 2018
French translation of claims
Search/Exam
Nov 28, 2018
German translation of the claims
Search/Exam
Nov 28, 2018
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Jul 23, 2018
Text intended for grant (clean copy)
Search/Exam
Jul 23, 2018
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Examination started
Search/Exam
Jan 4, 2018
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(Electronic) Receipt
Search/Exam
Dec 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Dec 4, 2017
Reply to Written Opinion prepared by the EPO
Search/Exam
Oct 24, 2017
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Communication to designated inventor
Search/Exam
Oct 20, 2017
Communication to designated inventor
Search/Exam
Sep 25, 2017
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(Electronic) Receipt
Search/Exam
Aug 21, 2017
Request for entry into the European phase
Search/Exam
Jul 26, 2017
Information on entry into European phase
Search/Exam
Mar 23, 2017
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Oct 17, 2016
Notification of election of EPO
Search/Exam
Oct 11, 2016
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Copy of the international search report
Search/Exam
Sep 22, 2016
Published international application - A1
Search/Exam
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PCT demand form
PCT2
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PCT demand form
PCT2
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ISR: cited documents
PCTISA
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Abstract
PCTISA
Apr 4, 2016
Annex
PCTISA
Apr 4, 2016
Claims
PCTISA
Apr 4, 2016
Description
PCTISA
Apr 4, 2016
Drawings
PCTISA
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