Cellulose Ether Powders

Patent No. EP3303406 (titled "Cellulose Ether Powders") was filed by DOW on May 26, 2016. The application was issued on Jun 26, 2019.

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
TYLOSE & COKG	Mar 26, 2020	PLATE

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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Mar 17, 2022
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Mar 17, 2022
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Mar 14, 2022
Termination of the opposition proceedings with maintenance of patent
Dec 6, 2021
Advice of delivery
Dec 2, 2021
Advice of delivery
Nov 30, 2021
Annex to the communication - opposition
Nov 30, 2021
Decision of the Opposition Division and instruction
Nov 30, 2021
Decision rejecting the opposition
Nov 30, 2021
Decision rejecting the opposition
Nov 30, 2021
Grounds for the decision (Annex) - opposition
Nov 30, 2021
Means of redress
Nov 30, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 30, 2021
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Nov 30, 2021
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Nov 30, 2021
Provision of a copy of the minutes - opposition procedure
Nov 30, 2021
Provision of a copy of the minutes - opposition procedure
Nov 30, 2021
Transmittal of decision / summons - opposition
Nov 30, 2021
Transmittal of decision / summons - opposition
Nov 9, 2021
Brief communication - Opposition proceedings
Nov 8, 2021
Information about the result of oral proceedings
Nov 4, 2021
(Electronic) Receipt
Nov 4, 2021
Citation in opposition procedure - 007
Nov 4, 2021
Consolidated list of cited opposition documents
Nov 4, 2021
Letter accompanying subsequently filed items
Nov 4, 2021
Written submission in preparation to/during oral proceedings
Sep 13, 2021
Brief communication - Opposition proceedings
Sep 9, 2021
Brief communication - Opposition proceedings
Sep 8, 2021
(Electronic) Receipt
Sep 8, 2021
Letter accompanying subsequently filed items
Sep 8, 2021
Written submission in preparation to/during oral proceedings
Sep 6, 2021
(Electronic) Receipt
Sep 6, 2021
Letter accompanying subsequently filed items
Sep 6, 2021
Request for interpreters during oral proceedings
Jul 8, 2021
Notification concerning the date of oral proceedings
Jul 8, 2021
Notification concerning the date of oral proceedings
Jan 19, 2021
Notification concerning the date of oral proceedings
Jan 19, 2021
Notification concerning the date of oral proceedings
Jan 14, 2021
Brief communication - Opposition proceedings
Jan 5, 2021
(Electronic) Receipt
Jan 5, 2021
Letter accompanying subsequently filed items
Jan 5, 2021
Withdrawal of a request for oral proceedings
Jan 4, 2021
Advice of delivery
Dec 28, 2020
Advice of delivery
Dec 17, 2020
Annex to the communication - opposition
Dec 17, 2020
Information concerning oral proceedings
Dec 17, 2020
Summons to attend oral proceedings
Dec 17, 2020
Summons to attend oral proceedings
Dec 17, 2020
Transmittal of decision / summons - opposition
Dec 17, 2020
Transmittal of decision / summons - opposition
Jun 15, 2020
Communication of a notice of opposition and request to file observations
Jun 15, 2020
Notice of further oppositions to opponent(s)
Apr 3, 2020
Communication of a notice of opposition - first information to patent proprietor
Mar 26, 2020
(Electronic) Receipt
Mar 26, 2020
Citation in opposition procedure - 001
Mar 26, 2020
Citation in opposition procedure - 002
Mar 26, 2020
Citation in opposition procedure - 003
Mar 26, 2020
Citation in opposition procedure - 004
Mar 26, 2020
Citation in opposition procedure - 005
Mar 26, 2020
Citation in opposition procedure - 006
Mar 26, 2020
International publication (Pamphlet)
Mar 26, 2020
Notice of opposition
Mar 26, 2020
Notice of opposition
Jul 8, 2019
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
May 31, 2019
Decision to grant a European patent
Apr 12, 2019
(Electronic) Receipt
Apr 12, 2019
Filing of the translations of the claims
Apr 12, 2019
French translation of claims
Apr 12, 2019
German translation of the claims
Apr 12, 2019
Letter accompanying subsequently filed items
Jan 7, 2019
Bibliographic data of the European patent application
Jan 7, 2019
Communication about intention to grant a European patent
Jan 7, 2019
Intention to grant (signatures)
Jan 7, 2019
Text intended for grant (clean copy)
Jan 7, 2019
Text intended for grant (version for approval)
Oct 31, 2018
Examination started
Jul 30, 2018
(Electronic) Receipt
Jul 30, 2018
Amended claims filed after receipt of (European) search report
Jul 30, 2018
Amended claims with annotations
Jul 30, 2018
Amended description filed after receipt of (European) search report
Jul 30, 2018
Amended description with annotations
Jul 30, 2018
Amendments received before examination
Jul 30, 2018
Letter accompanying subsequently filed items
Mar 14, 2018
Notification on forthcoming publication of bibliographic data
Jan 30, 2018
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jan 17, 2018
Communication to designated inventor
Jan 17, 2018
Communication to designated inventor
Jan 17, 2018
Communication to designated inventor
Jan 17, 2018
Communication to designated inventor
Jan 11, 2018
Communication confirming withdrawal from representation
Jan 11, 2018
Communication of amended entries concerning the representative
Jan 4, 2018
Submission concerning change of applicant's representative
Jan 2, 2018
(Electronic) Receipt
Jan 2, 2018
Request for entry into the European phase
Dec 21, 2017
Copy of the international preliminary report on patentability
Oct 13, 2017
Information on entry into European phase
Jan 3, 2017
Priority document (electronically transmitted)
Dec 8, 2016
Copy of the international search report
Dec 8, 2016
Published international application - A1
Aug 10, 2016
Written opinion of the ISA, boxes No. I to VIII
Aug 10, 2016
Written opinion of the ISA, cover sheet
Aug 10, 2016
Written opinion of the ISA, supplemental box

EP3303406

DOW

Application Number: EP16727602A
Filing Date: May 26, 2016
Status: Opposition Rejected; Mar 18, 2022
Publication Date: Jun 26, 2019
External Links: Slate, Register , Google Patents

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Cellulose Ether Powders

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Dossier Documents

EP3303406