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Water-Soluble Esterified Cellulose Ethers - EP3271404B1

EP3271404

Application Number: EP16714626A
Filing Date: Mar 8, 2016
Status: Opposition Rejected; Aug 6, 2021
Grant Date: Jan 9, 2019
External Links: Slate, Register, Google Patents
Similar Patents facing opposition: EP2694035B1
EP3660101B1
EP3568422B1

The patent EP3271404B1 was granted to DOW on Jan 9, 2019 following the initial filing on Mar 8, 2016 under the application number EP16714626A . The current legal status of the patent is Opposition Rejected.

Patent Summary

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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	Opposition Status
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SHIN ETSU CHEMICAL	Oct 9, 2019	ADMISSIBLE

Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history, including filings, correspondence, and decisions made by patent offices. These documents are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination. It also includes the oppositions documents filed against the patent.

Date
Description

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Aug 6, 2021
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
OPPO
Aug 6, 2021
Communication to the parties concerning the termination of the opposition proceedings (opponent)
OPPO
Aug 3, 2021
Termination of the opposition proceedings with maintenance of patent
OPPO
Apr 30, 2021
Advice of delivery
OPPO
Apr 29, 2021
Advice of delivery
OPPO
Apr 22, 2021
Annex to the communication - opposition
OPPO
Apr 22, 2021
Decision of the Opposition Division and instruction
OPPO
Apr 22, 2021
Decision rejecting the opposition
OPPO
Apr 22, 2021
Grounds for the decision (Annex) - opposition
OPPO
Apr 22, 2021
Internal form - Opposition/addressees
OPPO
Apr 22, 2021
Internal form - Opposition/addressees
OPPO
Apr 22, 2021
Means of redress
OPPO
Apr 22, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
OPPO
Apr 22, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
OPPO
Apr 22, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
OPPO
Apr 22, 2021
Provision of a copy of the minutes - opposition procedure
OPPO
Apr 22, 2021
Transmittal of decision / summons - opposition
OPPO
Apr 22, 2021
Transmittal of decision / summons - opposition
OPPO
Mar 16, 2021
Information about the result of oral proceedings
OPPO
Feb 9, 2021
Brief communication - Opposition proceedings
OPPO
Feb 4, 2021
(Electronic) Receipt
OPPO
Feb 4, 2021
Citation in opposition procedure
OPPO
Feb 4, 2021
Letter accompanying subsequently filed items
OPPO
Feb 4, 2021
Written submission in preparation to/during oral proceedings
OPPO
Jan 18, 2021
Brief communication - Opposition proceedings
OPPO
Jan 13, 2021
(Electronic) Receipt
OPPO
Jan 13, 2021
(Electronic) Receipt
OPPO
Jan 13, 2021
Citation in opposition procedure - 009
OPPO
Jan 13, 2021
Consolidated list of cited opposition documents
OPPO
Jan 13, 2021
Letter accompanying subsequently filed items
OPPO
Jan 13, 2021
Letter accompanying subsequently filed items
OPPO
Jan 13, 2021
Request for interpreters during oral proceedings
OPPO
Jan 13, 2021
Written submission in preparation to/during oral proceedings
OPPO
Dec 21, 2020
Brief communication - Opposition proceedings
OPPO
Dec 15, 2020
(Electronic) Receipt
OPPO
Dec 15, 2020
Letter accompanying subsequently filed items
OPPO
Dec 15, 2020
Oral proceedings: reply to date proposed
OPPO
Dec 11, 2020
Notification concerning the date of oral proceedings
OPPO
Dec 11, 2020
Notification concerning the date of oral proceedings
OPPO
Jun 22, 2020
Advice of delivery
OPPO
Jun 18, 2020
Advice of delivery
OPPO
Jun 12, 2020
Acknowledgement of a document
OPPO
Jun 12, 2020
Acknowledgement of a document
OPPO
Jun 12, 2020
Information concerning oral proceedings
OPPO
Jun 12, 2020
Summons to attend oral proceedings
OPPO
Jun 12, 2020
Summons to attend oral proceedings
OPPO
Jun 9, 2020
Brief communication - Opposition proceedings
OPPO
Jun 9, 2020
Notification concerning the date of oral proceedings
OPPO
Jun 9, 2020
Notification concerning the date of oral proceedings
OPPO
Jun 5, 2020
Advice of delivery
OPPO
Jun 4, 2020
(Electronic) Receipt
OPPO
Jun 4, 2020
(Electronic) Receipt
OPPO
Jun 4, 2020
Any annexes (other than citation) to an opposition letter
OPPO
Jun 4, 2020
Letter accompanying subsequently filed items
OPPO
Jun 4, 2020
Letter accompanying subsequently filed items
OPPO
Jun 4, 2020
Oral proceedings: Request for postponement
OPPO
Jun 4, 2020
Oral proceedings: Request for postponement
OPPO
Jun 2, 2020
Advice of delivery
OPPO
May 28, 2020
Acknowledgement of a document
OPPO
May 28, 2020
Acknowledgement of a document
OPPO
May 28, 2020
Annex to the communication - opposition
OPPO
May 28, 2020
Information concerning oral proceedings
OPPO
May 28, 2020
Summons to attend oral proceedings
OPPO
May 28, 2020
Summons to attend oral proceedings
OPPO
Mar 2, 2020
Brief communication - Opposition proceedings
OPPO
Feb 26, 2020
(Electronic) Receipt
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 01
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 02
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 03
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 04
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 05
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 06
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 07
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 08
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 09
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 10
OPPO
Feb 26, 2020
Auxiliary request during Opposition procedure - 11
OPPO
Feb 26, 2020
Citation in opposition procedure - 007
OPPO
Feb 26, 2020
Citation in opposition procedure - 008
OPPO
Feb 26, 2020
Letter accompanying subsequently filed items
OPPO
Feb 26, 2020
Reply of the patent proprietor to the notice(s) of opposition
OPPO
Dec 17, 2019
Brief communication - Opposition proceedings
OPPO
Dec 13, 2019
Communication of amended entries
OPPO
Dec 13, 2019
Communication of amended entries
OPPO
Dec 6, 2019
(Electronic) Receipt
OPPO
Dec 6, 2019
Letter accompanying subsequently filed items
OPPO
Dec 6, 2019
Request for change of opponent's representative
OPPO
Dec 4, 2019
(Electronic) Receipt
OPPO
Dec 4, 2019
Letter accompanying subsequently filed items
OPPO
Dec 4, 2019
Request for change of opponent's representative
OPPO
Oct 23, 2019
Communication of a notice of opposition and request to file observations
OPPO
Oct 23, 2019
Notice of further oppositions to opponent(s)
OPPO
Oct 15, 2019
Communication of a notice of opposition - first information to patent proprietor
OPPO
Oct 9, 2019
(Electronic) Receipt
OPPO
Oct 9, 2019
(Electronic) Receipt
OPPO
Oct 9, 2019
Citation in opposition procedure - 001
OPPO
Oct 9, 2019
Citation in opposition procedure - 002
OPPO
Oct 9, 2019
Citation in opposition procedure - 002
OPPO
Oct 9, 2019
Citation in opposition procedure - 003
OPPO
Oct 9, 2019
Citation in opposition procedure - 003
OPPO
Oct 9, 2019
Citation in opposition procedure - 004
OPPO
Oct 9, 2019
Citation in opposition procedure - 005
OPPO
Oct 9, 2019
Citation in opposition procedure - 006
OPPO
Oct 9, 2019
International publication (Pamphlet)
OPPO
Oct 9, 2019
Letter accompanying subsequently filed items
OPPO
Oct 9, 2019
Letter regarding the opposition procedure (no time limit)
OPPO
Oct 9, 2019
Notice of opposition
OPPO
Oct 9, 2019
Notice of opposition
OPPO
Jan 21, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Search/Exam
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
Jul 23, 2018
Bibliographic data of the European patent application
Search/Exam
Jul 23, 2018
Communication about intention to grant a European patent
Search/Exam
Jul 23, 2018
Intention to grant (signatures)
Search/Exam
Jul 23, 2018
Text intended for grant (clean copy)
Search/Exam
Jul 23, 2018
Text intended for grant (version for approval)
Search/Exam
Jun 22, 2018
Examination started
Search/Exam
Jan 4, 2018
Notification on forthcoming publication of bibliographic data
Search/Exam
Dec 4, 2017
(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
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Search/Exam
Oct 20, 2017
Communication to designated inventor
Search/Exam
Oct 20, 2017
Communication to designated inventor
Search/Exam
Sep 25, 2017
Annexes to the international preliminary examination report
Search/Exam
Sep 25, 2017
Copy of the international preliminary examination report
Search/Exam
Aug 21, 2017
(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
Annex to International preliminary examination report
PCT2
Mar 23, 2017
International preliminary examination report
PCT2
Mar 23, 2017
International preliminary examination report - free text sheet
PCT2
Mar 23, 2017
International preliminary examination report - points I-VIII
PCT2
Mar 23, 2017
Transmittal of International Preliminary Examination Report
PCT2
Oct 17, 2016
Notification of election of EPO
Search/Exam
Oct 11, 2016
Priority document (electronically transmitted)
Search/Exam
Oct 5, 2016
Amendments of documents (Article 19 PCT) (without attachments)
PCT2
Sep 28, 2016
Notification of receipt of demand
PCT2
Sep 22, 2016
Copy of the international search report
Search/Exam
Sep 22, 2016
Published international application - A1
Search/Exam
Sep 10, 2016
Document concerning fees and payments
PCT2
Sep 10, 2016
Non-patent literature cited during the examination procedure
PCT2
Sep 10, 2016
PCT demand form
PCT2
Sep 10, 2016
PCT(IPEA): Amended sheet - claims
PCT2
Sep 10, 2016
PCT(IPEA): Amended sheet - claims
PCT2
Sep 10, 2016
Reply to International Search Opinion
PCT2
Sep 10, 2016
Submission concerning representation
PCT2
Sep 8, 2016
Document concerning fees and payments
PCT2
Sep 8, 2016
Non-patent literature cited during the examination procedure
PCT2
Sep 8, 2016
PCT demand form
PCT2
Sep 8, 2016
PCT(IPEA): Amended sheet - claims
PCT2
Sep 8, 2016
PCT(IPEA): Amended sheet - claims
PCT2
Sep 8, 2016
Payment of fees and costs
PCT2
Sep 8, 2016
Reply to International Search Opinion
PCT2
Sep 8, 2016
Submission concerning representation
PCT2
Jun 9, 2016
ISR: cited documents
PCTISA
Jun 8, 2016
Written opinion of the ISA, boxes No. I to VIII
PCTISA
Jun 8, 2016
Written opinion of the ISA, cover sheet
PCTISA
Jun 8, 2016
Written opinion of the ISA, supplemental box
PCTISA
Apr 19, 2016
Notification of receipt of Search copy
PCTISA
Apr 4, 2016
Abstract
PCTISA
Apr 4, 2016
Annex
PCTISA
Apr 4, 2016
Claims
PCTISA
Apr 4, 2016
Description
PCTISA
Apr 4, 2016
Drawings
PCTISA
Apr 4, 2016
Fee calculation sheet for an international application
PCTISA
Apr 4, 2016
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
PCTISA
Apr 4, 2016
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
PCTISA
Apr 4, 2016
Request form for international application (copy for ISA/EP)
PCTISA