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IP Verse

Method For Producing Acrylamide Aqueous Solution - EP2711355

The patent EP2711355 was granted to Mitsubishi Chemical on Nov 29, 2017. The application was originally filed on May 21, 2012 under application number EP12786629A. The patent is currently recorded with a legal status of "Opposition Rejected".

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

Patent Summary

Patent Family

Patent Oppositions (2)

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

Patent Citations (23) New

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

Citation Phase	Publication Number
DESCRIPTION	JP2010222309
DESCRIPTION	JPH02470
DESCRIPTION	JPS3910109B
DESCRIPTION	JPS407171B
DESCRIPTION	JPS407172B
DESCRIPTION	JPS411773B
DESCRIPTION	JPS4511284B
DESCRIPTION	JPS5617918B
DESCRIPTION	JPS5937951B
DESCRIPTION	WO2009113654
INTERNATIONAL-SEARCH-REPORT	JP2009214099
INTERNATIONAL-SEARCH-REPORT	JPH04197189
INTERNATIONAL-SEARCH-REPORT	JPS6291189
INTERNATIONAL-SEARCH-REPORT	WO0250297
INTERNATIONAL-SEARCH-REPORT	WO03033716
INTERNATIONAL-SEARCH-REPORT	WO2009113617
INTERNATIONAL-SEARCH-REPORT	WO2011102510
INTERNATIONAL-SEARCH-REPORT	WO2012039407
INTERNATIONAL-SEARCH-REPORT	WO9721805
INTERNATIONAL-SEARCH-REPORT	WO9721827
OPPOSITION	EP0188316
OPPOSITION	EP1498431
SEARCH	US5200331

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