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Water-Absorbent Polymer Structure With Improved Permeability And Absorption Under Pressure

Patent No. EP2012843 (titled "Water-Absorbent Polymer Structure With Improved Permeability And Absorption Under Pressure") was filed by Evonik Degussa on Apr 20, 2007. The application was issued on Oct 27, 2021.

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	Representative
NIPPON SHOKUBAI	Jul 25, 2022	HOFFMANN EITLE

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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Jun 3, 2025
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jun 3, 2025
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Apr 4, 2025
Invitation to file an authorisation
Mar 10, 2025
General authorisation
Mar 10, 2025
Letter accompanying subsequently filed items
Mar 10, 2025
Submission concerning change of applicant's representative
Mar 10, 2025
Submission concerning change of applicant's representative
Feb 28, 2025
Brief communication - Opposition proceedings
Feb 28, 2025
Brief communication - Opposition proceedings
Feb 28, 2025
Decision revoking the European patent
Feb 28, 2025
Decision revoking the European patent
Feb 28, 2025
Grounds for the decision (Annex) - opposition
Feb 28, 2025
Means of redress
Feb 28, 2025
Scanned annex to a communication - opposition procedure
Feb 26, 2025
Decision of the Opposition Division and instruction
Feb 20, 2025
Brief communication - Opposition proceedings
Feb 18, 2025
Notification concerning the date of oral proceedings
Feb 18, 2025
Notification concerning the date of oral proceedings
Feb 14, 2025
(Electronic) Receipt
Feb 14, 2025
Letter accompanying subsequently filed items
Feb 14, 2025
Written submission in preparation to/during oral proceedings
Jan 17, 2025
Notification concerning the date of oral proceedings
Dec 19, 2024
Brief communication - Opposition proceedings
Dec 17, 2024
Brief communication - Opposition proceedings
Dec 11, 2024
(Electronic) Receipt
Dec 11, 2024
Letter accompanying subsequently filed items
Dec 11, 2024
Request for interpreters during oral proceedings
Dec 10, 2024
(Electronic) Receipt
Dec 10, 2024
Citation in opposition procedure - 011
Dec 10, 2024
Citation in opposition procedure - 012
Dec 10, 2024
Citation in opposition procedure - 013
Dec 10, 2024
Citation in opposition procedure - 014
Dec 10, 2024
Citation in opposition procedure - 015
Dec 10, 2024
Citation in opposition procedure - 016
Dec 10, 2024
Citation in opposition procedure - 017
Dec 10, 2024
Consolidated list of cited opposition documents
Dec 10, 2024
Letter accompanying subsequently filed items
Dec 10, 2024
Written submission in preparation to/during oral proceedings
Jul 5, 2024
Annex to the communication - opposition
Jul 5, 2024
Brief communication - Opposition proceedings
Jul 5, 2024
Brief communication - Opposition proceedings
Jul 5, 2024
Information concerning oral proceedings
Jul 5, 2024
Summons to attend oral proceedings
Jul 5, 2024
Summons to attend oral proceedings
Dec 14, 2022
Brief communication - Opposition proceedings
Dec 9, 2022
(Electronic) Receipt
Dec 9, 2022
Auxiliary request during Opposition procedure - 01
Dec 9, 2022
Auxiliary request during Opposition procedure - 02
Dec 9, 2022
Auxiliary request during Opposition procedure - 03
Dec 9, 2022
Auxiliary request during Opposition procedure - 04
Dec 9, 2022
Citation in opposition procedure - 010
Dec 9, 2022
Consolidated list of cited opposition documents
Dec 9, 2022
Letter accompanying subsequently filed items
Dec 9, 2022
Reply of the patent proprietor to the notice(s) of opposition
Aug 8, 2022
Communication of a notice of opposition and request to file observations
Aug 8, 2022
Notice of further oppositions to opponent(s)
Jul 28, 2022
Communication of a notice of opposition - first information to patent proprietor
Jul 25, 2022
(Electronic) Receipt
Jul 25, 2022
Citation in opposition procedure - 001
Jul 25, 2022
Citation in opposition procedure - 002
Jul 25, 2022
Citation in opposition procedure - 002
Jul 25, 2022
Citation in opposition procedure - 003
Jul 25, 2022
Citation in opposition procedure - 004
Jul 25, 2022
Citation in opposition procedure - 005
Jul 25, 2022
Citation in opposition procedure - 006
Jul 25, 2022
Citation in opposition procedure - 006
Jul 25, 2022
Citation in opposition procedure - 007
Jul 25, 2022
Citation in opposition procedure - 007
Jul 25, 2022
Citation in opposition procedure - 008
Jul 25, 2022
Citation in opposition procedure - 008
Jul 25, 2022
Citation in opposition procedure - 008
Jul 25, 2022
Citation in opposition procedure - 009
Jul 25, 2022
Notice of opposition
Jul 25, 2022
Notice of opposition
Nov 9, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Nov 2, 2021
Communication of the registration of a transfer or change of name and/or address
Oct 25, 2021
(Electronic) Receipt
Oct 25, 2021
Annexes in respect of a client data request
Oct 25, 2021
Letter accompanying subsequently filed items
Oct 25, 2021
Submission concerning a transfer of rights (applicant)
Sep 30, 2021
Decision to grant a European patent
Sep 17, 2021
(Electronic) Receipt
Sep 17, 2021
English translation of the claims
Sep 17, 2021
Filing of the translations of the claims
Sep 17, 2021
French translation of claims
Sep 17, 2021
Letter accompanying subsequently filed items
Jun 18, 2021
Bibliographic data of the European patent application
Jun 18, 2021
Communication about intention to grant a European patent
Jun 18, 2021
Intention to grant (signatures)
Jun 18, 2021
Text intended for grant (clean copy)
Jun 18, 2021
Text intended for grant (version for approval)
Feb 19, 2021
(Electronic) Receipt
Feb 19, 2021
Amended description with annotations
Feb 19, 2021
Description
Feb 19, 2021
Letter accompanying subsequently filed items
Feb 19, 2021
Reply to communication from the Examining Division
Dec 17, 2020
Annex to the communication
Dec 17, 2020
Communication from the Examining Division
Mar 23, 2020
(Electronic) Receipt
Mar 23, 2020
Amended description with annotations
Mar 23, 2020
Description
Mar 23, 2020
Letter accompanying subsequently filed items
Mar 23, 2020
Reply to communication from the Examining Division
Jan 3, 2020
Annex to the communication
Jan 3, 2020
Communication from the Examining Division
Nov 12, 2019
Communication of the registration of a transfer or change of name and/or address
Nov 6, 2019
Submission concerning change of applicant's name
Nov 6, 2019
Submission concerning change of applicant's name
Aug 16, 2019
Communication of amended entries concerning the representative
Aug 9, 2019
(Electronic) Receipt
Aug 9, 2019
Authorisation
Aug 9, 2019
Letter accompanying subsequently filed items
Aug 9, 2019
Submission concerning change of applicant's representative
Apr 9, 2019
(Electronic) Receipt
Apr 9, 2019
Letter accompanying subsequently filed items
Apr 9, 2019
Reply to communication from the Examining Division
Mar 13, 2019
Annex to the communication
Mar 13, 2019
Communication from the Examining Division
Jan 16, 2019
(Electronic) Receipt
Jan 16, 2019
Letter accompanying subsequently filed items
Jan 16, 2019
Matter concerning the application
Jan 9, 2019
Refund of fees
Jan 8, 2019
Advice of delivery
Jan 2, 2019
Advice of delivery
Dec 21, 2018
Decision of the Board of Appeal
Dec 21, 2018
Decision of the Board of Appeal
Dec 21, 2018
F3032 Notification(s) of the decision
Dec 21, 2018
F3032 Notification(s) of the decision
Nov 23, 2018
F3013 Oral Proceedings: Forwarding minutes
Nov 23, 2018
F3314 Oral proceedings: Minutes (ex parte)
Oct 11, 2018
(Electronic) Receipt
Oct 11, 2018
Claims
Oct 11, 2018
Claims
Oct 11, 2018
Claims
Oct 11, 2018
Claims
Oct 11, 2018
Letter accompanying subsequently filed items
Oct 11, 2018
Letter dealing with oral proceedings during the appeal procedure
Jun 19, 2018
F3017 Oral Proceedings: Notification of cancellation/postponing
Mar 7, 2018
Advice of delivery
Mar 7, 2018
Advice of delivery
Mar 2, 2018
F3017 Oral Proceedings: Notification of cancellation/postponing
Feb 27, 2018
F3014 Oral Proceedings: Order cancelling/postponing
Nov 23, 2017
Advice of delivery
Nov 22, 2017
Advice of delivery
Nov 17, 2017
F3011.1 Oral Proceedings: summons
Nov 14, 2017
F3010 Oral proceedings: order for summons
Aug 5, 2016
Communication of amended entries concerning the representative
May 18, 2016
Submission concerning change of applicant's representative
Dec 5, 2014
Letter relating to Appeal Procedure
Dec 5, 2014
Letter relating to Appeal Procedure
Nov 3, 2014
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Aug 13, 2014
Composition of the board (T)
Jun 6, 2014
F3204 Communication of the file number to the parties
Jun 2, 2014
Processing of an appeal
May 9, 2014
Acknowledgement of receipt of third party observations
May 9, 2014
Transmittal of third party observations to applicant
Apr 11, 2014
Claims
Apr 11, 2014
Claims
Apr 11, 2014
Claims
Apr 11, 2014
Claims
Apr 11, 2014
Claims
Apr 11, 2014
Claims
Apr 11, 2014
Statement of grounds of appeal
Apr 8, 2014
Claims
Apr 8, 2014
Claims
Apr 8, 2014
Claims
Apr 8, 2014
Claims
Apr 8, 2014
Claims
Apr 8, 2014
Claims
Apr 8, 2014
Statement of grounds of appeal
Apr 2, 2014
Observations by third parties
Apr 2, 2014
Patent document filed by a Third party
Jan 24, 2014
Notice of appeal
Jan 23, 2014
Notice of appeal
Dec 5, 2013
Advice of delivery
Dec 2, 2013
Advice of delivery
Nov 29, 2013
Acknowledgement of a document
Nov 29, 2013
Annex to a communication
Nov 29, 2013
Decision to refuse the application (Examining Division)
Nov 29, 2013
Decision to refuse the application (examining division)
Nov 29, 2013
Grounds for the decision (Annex)
Nov 29, 2013
Means of redress
Oct 28, 2013
Notification concerning the date of oral proceedings
Oct 23, 2013
Findings upon submissions relating to oral proceedings
Oct 7, 2013
(Electronic) Receipt
Oct 7, 2013
Amended claims with annotations
Oct 7, 2013
Amended claims with annotations
Oct 7, 2013
Letter accompanying subsequently filed items
Oct 7, 2013
Written submission in preparation to/during oral proceedings
Jul 18, 2013
Advice of delivery
Jul 17, 2013
Advice of delivery
Jul 16, 2013
Acknowledgement of a document
Jul 16, 2013
Annex to the communication
Jul 16, 2013
Summons to attend oral proceedings
Jul 10, 2013
Preparation for oral proceedings
Sep 12, 2012
Communication of the registration of a transfer or change of name and/or address
Sep 6, 2012
Annexes in respect of a client data request
Sep 1, 2012
Submission concerning a transfer of rights (applicant)
Jul 6, 2011
Claims
Jul 6, 2011
Reply to communication from the Examining Division
Jul 4, 2011
Claims
Jul 4, 2011
Reply to communication from the Examining Division
Apr 20, 2011
Grant of extension of time limit (examination procedure)
Apr 15, 2011
(Electronic) Receipt
Apr 15, 2011
Letter accompanying subsequently filed items
Apr 15, 2011
Request for extension of time limit to communication from the Examining Division
Dec 23, 2010
Annex to the communication
Dec 23, 2010
Communication from the Examining Division
May 11, 2009
Refund of fees
Apr 27, 2009
Communication of amended entries concerning the representative
Apr 20, 2009
Submission concerning change of applicant's representative
Mar 31, 2009
Submission concerning change of applicant's representative
Mar 23, 2009
CDS Clean up - amended data concerning the representative for the applicant
Mar 12, 2009
Communication regarding possible amendment of claims/payment of claims fees
Feb 27, 2009
Letter concerning the inventor
Feb 27, 2009
Letter concerning the inventor
Feb 26, 2009
Copy of the international search report
Feb 26, 2009
Copy of the international search report
Feb 26, 2009
International publication of the international search report
Jan 27, 2009
Copy of the international preliminary report on patentability
Jan 27, 2009
Invitation to indicate correct address of inventor
Jan 27, 2009
Invitation to indicate correct address of inventor
Dec 17, 2008
Notification on forthcoming publication of bibliographic data
Dec 10, 2008
Letter which had not been notified
Dec 9, 2008
Letter which had not been notified
Nov 28, 2008
Cover sheet for fax transmission
Nov 27, 2008
Cover sheet for fax transmission
Nov 5, 2008
Request for entry into the European phase
Oct 30, 2008
Claims
Oct 30, 2008
Claims
Oct 30, 2008
Fax request to enter the European phase
Oct 30, 2008
Letter accompanying subsequently filed items
Oct 30, 2008
Payment of fees and costs
Oct 30, 2008
Request for correction
Sep 5, 2008
Information on entry into European phase
Sep 1, 2008
Notification of the recording of a change
Sep 1, 2008
Notification of the recording of a change
Sep 1, 2008
Notification of the recording of a change
May 27, 2008
Priority document (electronically transmitted)
May 27, 2008
Priority document (electronically transmitted)
May 27, 2008
Priority document (electronically transmitted)
May 27, 2008
Priority document (electronically transmitted)
May 27, 2008
Priority document (electronically transmitted)
Nov 1, 2007
Published international application - A2
Apr 24, 2007
Abstract
Apr 24, 2007
Claims
Apr 24, 2007
Description
Apr 24, 2007
Submission concerning representation

EP2012843

EVONIK DEGUSSA

Application Number: EP07724412A
Filing Date: Apr 20, 2007
Status: Revoked; May 29, 2025
Publication Date: Oct 27, 2021
External Links: Slate, Register , Google Patents