Method For Producing Acrylamide Aqueous Solution

Patent No. EP2711355 (titled "Method For Producing Acrylamide Aqueous Solution") was filed by Mitsubishi Chemical on May 21, 2012. The application was issued on Nov 29, 2017.

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
MAIWALD	Aug 29, 2018	INGRASSIA
MAIWALD	Aug 29, 2018	LKGLOBAL UK

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

Jul 9, 2020
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Jul 9, 2020
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jul 6, 2020
Termination of the opposition proceedings with maintenance of patent
Apr 14, 2020
Advice of delivery
Apr 14, 2020
Communication about missing advice of delivery
Mar 10, 2020
Advice of delivery
Mar 6, 2020
Acknowledgement of a document
Mar 6, 2020
Acknowledgement of a document
Mar 6, 2020
Annex to the communication - opposition
Mar 6, 2020
Decision of the Opposition Division and instruction
Mar 6, 2020
Decision rejecting the opposition
Mar 6, 2020
Grounds for the decision (Annex) - opposition
Mar 6, 2020
Internal form - Opposition/addressees
Mar 6, 2020
Internal form - Opposition/addressees
Mar 6, 2020
Means of redress
Mar 6, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 6, 2020
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 6, 2020
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 6, 2020
Provision of a copy of the minutes - opposition procedure
Jan 27, 2020
Information about the result of oral proceedings
Dec 3, 2019
Brief communication - Opposition proceedings
Dec 3, 2019
Brief communication - Opposition proceedings
Nov 27, 2019
(Electronic) Receipt
Nov 27, 2019
Amended claims with annotations
Nov 27, 2019
Claims
Nov 27, 2019
Request for interpreters during oral proceedings
Nov 27, 2019
Written submission in preparation to/during oral proceedings
Nov 26, 2019
(Electronic) Receipt
Nov 26, 2019
Citation in opposition procedure - 012
Nov 26, 2019
Citation in opposition procedure - 013
Nov 26, 2019
Citation in opposition procedure - 014
Nov 26, 2019
Citation in opposition procedure - 015
Nov 26, 2019
Citation in opposition procedure - 016
Nov 26, 2019
Consolidated list of cited opposition documents
Nov 26, 2019
Letter accompanying subsequently filed items
Nov 26, 2019
Written submission in preparation to/during oral proceedings
Oct 22, 2019
Brief communication - Opposition proceedings
Oct 22, 2019
Communication confirming withdrawal from representation
Oct 22, 2019
Communication of amended entries
Sep 23, 2019
(Electronic) Receipt
Sep 23, 2019
Request for change of opponent's representative
Jun 14, 2019
Advice of delivery
May 28, 2019
Advice of delivery
May 20, 2019
Advice of delivery
May 20, 2019
Advice of delivery
May 17, 2019
Acknowledgement of a document
May 17, 2019
Acknowledgement of a document
May 17, 2019
Information concerning oral proceedings
May 17, 2019
Summons to attend oral proceedings
May 17, 2019
Summons to attend oral proceedings
May 16, 2019
Notification concerning the date of oral proceedings
May 16, 2019
Notification concerning the date of oral proceedings
May 13, 2019
Brief communication - Opposition proceedings
Apr 26, 2019
(Electronic) Receipt
Apr 26, 2019
Any annexes (other than citation) to an opposition letter
Apr 26, 2019
Letter accompanying subsequently filed items
Apr 26, 2019
Oral proceedings: Request for postponement
Apr 15, 2019
Advice of delivery
Apr 11, 2019
Advice of delivery
Mar 21, 2019
Advice of delivery
Mar 20, 2019
Advice of delivery
Mar 18, 2019
Acknowledgement of a document
Mar 18, 2019
Acknowledgement of a document
Mar 18, 2019
Annex to the communication - opposition
Mar 18, 2019
Information concerning oral proceedings
Mar 18, 2019
Summons to attend oral proceedings
Mar 18, 2019
Summons to attend oral proceedings
Jan 29, 2019
Brief communication - Opposition proceedings
Jan 18, 2019
(Electronic) Receipt
Jan 18, 2019
Citation in opposition procedure - 011
Jan 18, 2019
Letter accompanying subsequently filed items
Jan 18, 2019
Reply of the patent proprietor to the notice(s) of opposition
Oct 1, 2018
Brief communication - Opposition proceedings
Sep 14, 2018
Communication of a notice of opposition and request to file observations
Sep 14, 2018
Notice of further oppositions to opponent(s)
Sep 12, 2018
(Electronic) Receipt
Sep 12, 2018
Letter accompanying subsequently filed items
Sep 12, 2018
Letter regarding the opposition procedure (no time limit)
Sep 7, 2018
Communication of a notice of opposition - first information to patent proprietor
Aug 29, 2018
(Electronic) Receipt
Aug 29, 2018
Citation in opposition procedure - 001
Aug 29, 2018
Citation in opposition procedure - 002
Aug 29, 2018
Citation in opposition procedure - 003
Aug 29, 2018
Citation in opposition procedure - 004
Aug 29, 2018
Citation in opposition procedure - 005
Aug 29, 2018
Citation in opposition procedure - 006
Aug 29, 2018
Citation in opposition procedure - 007
Aug 29, 2018
Citation in opposition procedure - 008
Aug 29, 2018
Citation in opposition procedure - 009
Aug 29, 2018
Citation in opposition procedure - 010
Aug 29, 2018
Notice of opposition
Aug 29, 2018
Notice of opposition
Dec 7, 2017
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 6, 2017
Decision to grant a European patent
Oct 19, 2017
Filing of the translations of the claims
Oct 19, 2017
French translation of claims
Oct 19, 2017
German translation of the claims
Oct 19, 2017
Payment of fees and costs
Jul 3, 2017
Bibliographic data of the European patent application
Jul 3, 2017
Communication about intention to grant a European patent
Jul 3, 2017
Intention to grant (signatures)
Jul 3, 2017
Text intended for grant (clean copy)
Jul 3, 2017
Text intended for grant (version for approval)
Jun 23, 2017
Communication of the registration of a transfer or change of name and/or address
Jun 14, 2017
Submission concerning change of applicant's name
May 30, 2017
Examination started
Jun 16, 2015
Amended claims filed after receipt of (European) search report
Jun 16, 2015
Amended claims with annotations
Jun 16, 2015
Amended description filed after receipt of (European) search report
Jun 16, 2015
Amended description with annotations
Jun 16, 2015
Amendments received before examination
Dec 16, 2014
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Nov 28, 2014
Communication regarding the transmission of the European search report
Nov 28, 2014
European search opinion
Nov 28, 2014
Supplementary European search report
Nov 11, 2014
Search started
Sep 26, 2014
Submission concerning representation
Feb 26, 2014
Notification of forthcoming publication
Jan 3, 2014
Communication to designated inventor
Jan 3, 2014
Communication to designated inventor
Dec 4, 2013
Copy of the international preliminary report on patentability
Dec 4, 2013
Translation of the international preliminary report on patentability
Nov 14, 2013
(Electronic) Receipt
Nov 14, 2013
Abstract
Nov 14, 2013
Claims
Nov 14, 2013
Description
Nov 14, 2013
Request for entry into the European phase
Oct 14, 2013
Notification of the recording of a change
Sep 27, 2013
Information on entry into European phase
Jun 12, 2013
Notification of the recording of a change
Dec 13, 2012
Priority document (electronically transmitted)
Nov 22, 2012
Copy of the international search report
Nov 22, 2012
Copy of the translated international search report
Nov 22, 2012
International publication pamphlet

EP2711355

MITSUBISHI CHEMICAL

Application Number: EP12786629A
Filing Date: May 21, 2012
Status: Opposition Rejected; Jul 10, 2020
Publication Date: Nov 29, 2017
External Links: Slate, Register , Google Patents

IP Verse

Method For Producing Acrylamide Aqueous Solution

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2711355