The weekly litigation news digest is live. Subscribe now

IP Verse

Water-Soluble Esterified Cellulose Ethers Having A Low Degree Of Neutralization - EP3270971

The patent EP3270971 was granted to DOW on Jan 9, 2019. The application was filed on Mar 8, 2016 under application number EP16711737A. The patent is currently recorded with a legal status of "Opposition Rejected".

EP3270971

DOW

Application Number: EP16711737A
Filing Date: Mar 8, 2016
Status: Opposition Rejected; Jun 11, 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
SHIN ETSU CHEMICAL	Oct 9, 2019	TER MEER STEINMEISTER & PARTNER	ADMISSIBLE

Patent Citations (26) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation Phase	Publication Number
DESCRIPTION	EP0210917
DESCRIPTION	EP0219426
DESCRIPTION	EP0872233
DESCRIPTION	EP1141029
DESCRIPTION	EP1423433
DESCRIPTION	US4226981
DESCRIPTION	US4316982
DESCRIPTION	US4365060
DESCRIPTION	WO2005115330
DESCRIPTION	WO2011159626
DESCRIPTION	WO2013148154
DESCRIPTION	WO2013164121
DESCRIPTION	WO2014031422
DESCRIPTION	WO2014137777
DESCRIPTION	WO2015009796
INTERNATIONAL-SEARCH-REPORT	WO2013154607
INTERNATIONAL-SEARCH-REPORT	WO2014031419
INTERNATIONAL-SEARCH-REPORT	WO2014031422
INTERNATIONAL-SEARCH-REPORT	WO2014031447
INTERNATIONAL-SEARCH-REPORT	WO2014137777
INTERNATIONAL-SEARCH-REPORT	WO2014137778
INTERNATIONAL-SEARCH-REPORT	WO2014137779
OPPOSITION	EP2476439
OPPOSITION	EP3091036
OPPOSITION	EP3270973
OPPOSITION	WO2011159626

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

Get instant alerts for new documents

Jun 15, 2021
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
OPPO
Jun 15, 2021
Communication to the parties concerning the termination of the opposition proceedings (opponent)
OPPO
Jun 10, 2021
Termination of the opposition proceedings with maintenance of patent
OPPO
Mar 15, 2021
Advice of delivery
OPPO
Mar 8, 2021
Advice of delivery
OPPO
Mar 1, 2021
Annex to the communication - opposition
OPPO
Mar 1, 2021
Decision of the Opposition Division and instruction
OPPO
Mar 1, 2021
Decision rejecting the opposition
OPPO
Mar 1, 2021
Grounds for the decision (Annex) - opposition
OPPO
Mar 1, 2021
Internal form - Opposition/addressees
OPPO
Mar 1, 2021
Internal form - Opposition/addressees
OPPO
Mar 1, 2021
Means of redress
OPPO
Mar 1, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
OPPO
Mar 1, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
OPPO
Mar 1, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
OPPO
Mar 1, 2021
Provision of a copy of the minutes - opposition procedure
OPPO
Mar 1, 2021
Transmittal of decision / summons - opposition
OPPO
Mar 1, 2021
Transmittal of decision / summons - opposition
OPPO
Jan 26, 2021
Information about the result of oral proceedings
OPPO
Dec 23, 2020
Brief communication - Opposition proceedings
OPPO
Dec 18, 2020
(Electronic) Receipt
OPPO
Dec 18, 2020
Letter accompanying subsequently filed items
OPPO
Dec 18, 2020
Written submission in preparation to/during oral proceedings
OPPO
Dec 2, 2020
Brief communication - Opposition proceedings
OPPO
Nov 30, 2020
Notification concerning the date of oral proceedings
OPPO
Nov 30, 2020
Notification concerning the date of oral proceedings
OPPO
Nov 26, 2020
(Electronic) Receipt
OPPO
Nov 26, 2020
Letter accompanying subsequently filed items
OPPO
Nov 26, 2020
Request for interpreters during oral proceedings
OPPO
Nov 24, 2020
Brief communication - Opposition proceedings
OPPO
Nov 24, 2020
Brief communication - Opposition proceedings
OPPO
Nov 19, 2020
(Electronic) Receipt
OPPO
Nov 19, 2020
Letter accompanying subsequently filed items
OPPO
Nov 19, 2020
Oral proceedings: reply to date proposed
OPPO
Nov 18, 2020
(Electronic) Receipt
OPPO
Nov 18, 2020
Citation in opposition procedure - 011
OPPO
Nov 18, 2020
Consolidated list of cited opposition documents
OPPO
Nov 18, 2020
Letter accompanying subsequently filed items
OPPO
Nov 18, 2020
Written submission in preparation to/during oral proceedings
OPPO
Jun 23, 2020
Advice of delivery
OPPO
Jun 18, 2020
Advice of delivery
OPPO
Jun 15, 2020
Acknowledgement of a document
OPPO
Jun 15, 2020
Acknowledgement of a document
OPPO
Jun 15, 2020
Annex to the communication - opposition
OPPO
Jun 15, 2020
Information concerning oral proceedings
OPPO
Jun 15, 2020
Summons to attend oral proceedings
OPPO
Jun 15, 2020
Summons to attend oral proceedings
OPPO
Mar 5, 2020
Brief communication - Opposition proceedings
OPPO
Feb 28, 2020
(Electronic) Receipt
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 01
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 02
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 03
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 04
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 05
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 06
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 07
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 08
OPPO
Feb 28, 2020
Auxiliary request during Opposition procedure - 09
OPPO
Feb 28, 2020
Citation in opposition procedure - 010
OPPO
Feb 28, 2020
Letter accompanying subsequently filed items
OPPO
Feb 28, 2020
Reply of the patent proprietor to the notice(s) of opposition
OPPO
Dec 12, 2019
Brief communication - Opposition proceedings
OPPO
Dec 12, 2019
Communication of amended entries
OPPO
Dec 12, 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 21, 2019
Communication of a notice of opposition and request to file observations
OPPO
Oct 21, 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
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
Citation in opposition procedure - 007
OPPO
Oct 9, 2019
Citation in opposition procedure - 008
OPPO
Oct 9, 2019
Citation in opposition procedure - 008
OPPO
Oct 9, 2019
Citation in opposition procedure - 009
OPPO
Oct 9, 2019
International publication (Pamphlet)
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 26, 2018
Bibliographic data of the European patent application
Search/Exam
Jul 26, 2018
Communication about intention to grant a European patent
Search/Exam
Jul 26, 2018
Intention to grant (signatures)
Search/Exam
Jul 26, 2018
Text intended for grant (clean copy)
Search/Exam
Jul 26, 2018
Text intended for grant (version for approval)
Search/Exam
Jun 15, 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
Matter concerning the application
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
Oct 20, 2017
Communication to designated inventor
Search/Exam
Sep 25, 2017
Copy of the international preliminary examination report
Search/Exam
Aug 21, 2017
(Electronic) Receipt
Search/Exam
Aug 21, 2017
Amended claims filed after receipt of (European) search report
Search/Exam
Aug 21, 2017
Amended claims with annotations
Search/Exam
Aug 21, 2017
Amendments received before examination
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 10, 2017
International preliminary examination report
PCT2
Mar 10, 2017
International preliminary examination report - free text sheet
PCT2
Mar 10, 2017
International preliminary examination report - points I-VIII
PCT2
Mar 10, 2017
Transmittal of International Preliminary Examination Report
PCT2
Oct 11, 2016
Priority document (electronically transmitted)
Search/Exam
Oct 7, 2016
Notification of the recording of a change
PCTISA
Oct 7, 2016
Notification of the recording of a change
PCT2
Oct 7, 2016
Notification of the recording of a change
Search/Exam
Sep 22, 2016
Copy of the international search report
Search/Exam
Sep 22, 2016
Published international application - A1
Search/Exam
Aug 10, 2016
Notification of receipt of demand
PCT2
Aug 6, 2016
Document concerning fees and payments
PCT2
Aug 6, 2016
PCT demand form
PCT2
Aug 6, 2016
Reply to International Search Opinion
PCT2
Aug 6, 2016
Submission concerning representation
PCT2
Aug 4, 2016
Document concerning fees and payments
PCT2
Aug 4, 2016
PCT demand form
PCT2
Aug 4, 2016
Payment of fees and costs
PCT2
Aug 4, 2016
Reply to International Search Opinion
PCT2
Aug 4, 2016
Submission concerning representation
PCT2
Jun 8, 2016
ISR: cited documents
PCTISA
Jun 7, 2016
Written opinion of the ISA, boxes No. I to VIII
PCTISA
Jun 7, 2016
Written opinion of the ISA, cover sheet
PCTISA
Jun 7, 2016
Written opinion of the ISA, supplemental box
PCTISA
Apr 11, 2016
Notification of receipt of Search copy
PCTISA
Mar 17, 2016
Abstract
PCTISA
Mar 17, 2016
Annex
PCTISA
Mar 17, 2016
Claims
PCTISA
Mar 17, 2016
Description
PCTISA
Mar 17, 2016
Drawings
PCTISA
Mar 17, 2016
Fee calculation sheet for an international application
PCTISA
Mar 17, 2016
Notification Concerning Payment of Prescribed Fees (copy for ISA/EP)
PCTISA
Mar 17, 2016
Notification of the International Application Number and of the International Filing Date (copy for ISA/EP)
PCTISA
Mar 17, 2016
Request form for international application (copy for ISA/EP)
PCTISA