IP Verse

Method For Producing Water-Absorbing Resin, And Water-Absorbing Resin Obtained By Same

Patent No. EP2752430 (titled "Method For Producing Water-Absorbing Resin, And Water-Absorbing Resin Obtained By Same") was filed by Sumitomo Seika Chemicals on Aug 23, 2012. The application was issued on Jul 6, 2016.

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	Apr 4, 2017	MAI BESIER

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

Oct 31, 2022
(Electronic) Receipt
Oct 31, 2022
F3936 Acknowledgement of receipt Board of Appeal
Oct 31, 2022
Letter accompanying subsequently filed items
Oct 27, 2022
Termination of the opposition proceedings with maintenance of patent
Oct 25, 2022
Decision of the Board of Appeal
Oct 25, 2022
F3032 Notification(s) of the decision
Oct 25, 2022
F3032 Notification(s) of the decision
Oct 19, 2022
(Electronic) Receipt
Oct 19, 2022
(Electronic) Receipt
Oct 19, 2022
Advice of delivery
Oct 19, 2022
Advice of delivery
Oct 19, 2022
Letter accompanying subsequently filed items
Oct 19, 2022
Letter accompanying subsequently filed items
Oct 18, 2022
(Electronic) Receipt
Oct 18, 2022
F3014 Oral Proceedings: Order cancelling/postponing
Oct 18, 2022
F3017 Oral Proceedings: Notification of cancellation/postponing
Oct 18, 2022
F3017 Oral Proceedings: Notification of cancellation/postponing
Oct 18, 2022
F3345 Forwarding of submissions to parties
Oct 18, 2022
Letter accompanying subsequently filed items
Oct 18, 2022
Oral proceedings: reply to date proposed
Sep 30, 2022
F3345 Forwarding of submissions to parties
Sep 29, 2022
(Electronic) Receipt
Sep 29, 2022
Letter accompanying subsequently filed items
Sep 29, 2022
Oral proceedings: reply to date proposed
Sep 20, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 20, 2022
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Sep 1, 2022
F3022 Oral proceedings: change of board composition
Sep 1, 2022
F3022 Oral proceedings: change of board composition
Aug 29, 2022
F3303.16 Change of composition of the Board (T)
Dec 8, 2021
Advice of delivery
Dec 3, 2021
(Electronic) Receipt
Dec 3, 2021
Advice of delivery
Dec 3, 2021
F3011.1 Oral Proceedings: summons
Dec 3, 2021
F3011.1 Oral Proceedings: summons
Dec 3, 2021
Letter accompanying subsequently filed items
Nov 30, 2021
F3010 Oral proceedings: order for summons
Sep 20, 2021
Document concerning representation
Jan 17, 2020
F3345 Forwarding of submissions to parties
Jan 13, 2020
Amended claims with annotations
Jan 13, 2020
Amended claims with annotations
Jan 13, 2020
Amended claims with annotations
Jan 13, 2020
Claims
Jan 13, 2020
Claims
Jan 13, 2020
Claims
Jan 13, 2020
Letter accompanying subsequently filed items
Jan 13, 2020
Non-Patent Literature cited during the appeal procedure
Jan 13, 2020
Non-Patent Literature cited during the appeal procedure
Jan 13, 2020
Non-Patent Literature cited during the appeal procedure
Jan 13, 2020
Patent Document cited during the appeal procedure
Jan 13, 2020
Reply to appeal
Nov 12, 2019
Composition of the board (T)
Sep 5, 2019
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
Sep 2, 2019
Statement of grounds of appeal
Sep 2, 2019
Statement of grounds of appeal
Sep 2, 2019
Statement of grounds of appeal
Jul 4, 2019
F3204 Communication of the file number to the parties
Jul 4, 2019
F3204 Communication of the file number to the parties
Jun 28, 2019
Processing of an appeal
Jun 26, 2019
Notice of appeal
May 22, 2019
Advice of delivery
May 2, 2019
Advice of delivery
Apr 30, 2019
(Electronic) Receipt
Apr 30, 2019
Advice of delivery
Apr 30, 2019
Letter accompanying subsequently filed items
Apr 23, 2019
Acknowledgement of a document
Apr 23, 2019
Acknowledgement of a document
Apr 23, 2019
Annex to the communication - opposition
Apr 23, 2019
Decision of the Opposition Division and instruction
Apr 23, 2019
Decision rejecting the opposition
Apr 23, 2019
Grounds for the decision (Annex) - opposition
Apr 23, 2019
Internal form - Opposition/addressees
Apr 23, 2019
Internal form - Opposition/addressees
Apr 23, 2019
Means of redress
Apr 23, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 23, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Apr 23, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Apr 23, 2019
Provision of a copy of the minutes - opposition procedure
Apr 23, 2019
Scanned annex to a communication - opposition procedure
Mar 20, 2019
Brief communication - Opposition proceedings
Mar 20, 2019
Information about the result of oral proceedings
Mar 12, 2019
(Electronic) Receipt
Mar 12, 2019
Letter accompanying subsequently filed items
Mar 12, 2019
Patent document cited during the opposition procedure
Mar 12, 2019
Patent document cited during the opposition procedure
Mar 12, 2019
Patent document cited during the opposition procedure
Mar 12, 2019
Patent document cited during the opposition procedure
Mar 12, 2019
Patent document cited during the opposition procedure
Mar 12, 2019
Patent document cited during the opposition procedure
Mar 12, 2019
Patent document cited during the opposition procedure
Mar 12, 2019
Written submission in preparation to/during oral proceedings
Jan 25, 2019
Brief communication - Opposition proceedings
Jan 24, 2019
Brief communication - Opposition proceedings
Jan 24, 2019
Brief communication - Opposition proceedings
Jan 21, 2019
(Electronic) Receipt
Jan 21, 2019
Letter accompanying subsequently filed items
Jan 21, 2019
Request for interpreters during oral proceedings
Jan 18, 2019
Citation in opposition procedure
Jan 18, 2019
Written submission in preparation to/during oral proceedings
Jan 17, 2019
(Electronic) Receipt
Jan 17, 2019
Amended claims with annotations
Jan 17, 2019
Amended claims with annotations
Jan 17, 2019
Amended claims with annotations
Jan 17, 2019
Any annexes (other than citation) to an opposition letter
Jan 17, 2019
Auxiliary request during Opposition procedure
Jan 17, 2019
Auxiliary request during Opposition procedure
Jan 17, 2019
Auxiliary request during Opposition procedure
Jan 17, 2019
Citation in opposition procedure
Jan 17, 2019
Letter accompanying subsequently filed items
Jan 17, 2019
Non-patent literature cited during the opposition procedure
Jan 17, 2019
Non-patent literature cited during the opposition procedure
Jan 17, 2019
Patent document cited during the opposition procedure
Jan 17, 2019
Patent document cited during the opposition procedure
Jan 17, 2019
Patent document cited during the opposition procedure
Jan 17, 2019
Patent document cited during the opposition procedure
Jan 17, 2019
Patent document cited during the opposition procedure
Jan 17, 2019
Patent document cited during the opposition procedure
Jan 17, 2019
Written submission in preparation to/during oral proceedings
Jan 17, 2019
Written submission in preparation to/during oral proceedings
Jan 17, 2019
Written submission in preparation to/during oral proceedings
Jan 17, 2019
Written submission in preparation to/during oral proceedings
Jan 16, 2019
Non-patent literature cited during the opposition procedure
Jan 16, 2019
Non-patent literature cited during the opposition procedure
Jan 16, 2019
Non-patent literature cited during the opposition procedure
Jan 16, 2019
Non-patent literature cited during the opposition procedure
Jan 16, 2019
Non-patent literature cited during the opposition procedure
Jan 16, 2019
Written submission in preparation to/during oral proceedings
Jan 14, 2019
Request for interpreters during oral proceedings
Jan 8, 2019
Request for interpreters during oral proceedings
Apr 24, 2018
Advice of delivery
Apr 3, 2018
Advice of delivery
Mar 29, 2018
(Electronic) Receipt
Mar 29, 2018
Advice of delivery
Mar 29, 2018
Letter accompanying subsequently filed items
Mar 27, 2018
Acknowledgement of a document
Mar 27, 2018
Acknowledgement of a document
Mar 27, 2018
Annex to the communication - opposition
Mar 27, 2018
Information concerning oral proceedings
Mar 27, 2018
Information concerning oral proceedings
Mar 27, 2018
Preparation for oral proceedings
Mar 27, 2018
Summons to attend oral proceedings
Mar 27, 2018
Summons to attend oral proceedings
Nov 30, 2017
Brief communication - Opposition proceedings
Nov 14, 2017
Miscellaneous requests concerning client data
Oct 10, 2017
Any annexes (other than citation) to an opposition letter
Oct 10, 2017
Non-patent literature cited during the opposition procedure
Oct 10, 2017
Non-patent literature cited during the opposition procedure
Oct 10, 2017
Reply of the patent proprietor to the notice(s) of opposition
Oct 10, 2017
Translation of the evidence during Opposition procedure
Jun 13, 2017
Communication of a notice of opposition and request to file observations
Jun 13, 2017
Notice of further oppositions to opponent(s)
Jun 12, 2017
Communication of amended entries concerning the representative
Jun 7, 2017
Submission concerning change of applicant's representative
Jun 6, 2017
Submission concerning change of applicant's representative
Apr 19, 2017
Communication of a notice of opposition - first information to patent proprietor
Apr 7, 2017
CDS Clean up - amended data concerning the representative of the opponent (Association)
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Non-patent literature cited during the opposition procedure
Apr 5, 2017
Notice of opposition
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Patent document cited during the opposition procedure
Apr 5, 2017
Payment of fees and costs
Apr 4, 2017
Any annexes (other than citation) to an opposition letter
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Non-patent literature cited during the opposition procedure
Apr 4, 2017
Notice of opposition
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Patent document cited during the opposition procedure
Apr 4, 2017
Payment of fees and costs
Apr 4, 2017
Payment of fees and costs
Jul 6, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jun 9, 2016
Decision to grant a European patent
May 24, 2016
(Electronic) Receipt
May 24, 2016
Filing of the translations of the claims
May 24, 2016
French translation of claims
May 24, 2016
German translation of the claims
May 24, 2016
Letter accompanying subsequently filed items
Feb 3, 2016
Bibliographic data of the European patent application
Feb 3, 2016
Communication about intention to grant a European patent
Feb 3, 2016
Intention to grant (signatures)
Feb 3, 2016
Text intended for grant (clean copy)
Feb 3, 2016
Text intended for grant (version for approval)
Dec 14, 2015
Examination started
Aug 11, 2015
(Electronic) Receipt
Aug 11, 2015
Amended claims filed after receipt of (European) search report
Aug 11, 2015
Amended claims with annotations
Aug 11, 2015
Amended description filed after receipt of (European) search report
Aug 11, 2015
Amended description with annotations
Aug 11, 2015
Amendments received before examination
Aug 11, 2015
Letter accompanying subsequently filed items
Mar 31, 2015
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Mar 13, 2015
Communication regarding the transmission of the European search report
Mar 13, 2015
European search opinion
Mar 13, 2015
Supplementary European search report
Mar 5, 2015
Search started
Jun 12, 2014
Notification of forthcoming publication
Apr 11, 2014
Communication for party to proceedings/third party
Apr 11, 2014
Communication regarding possible amendment of the application/payment of claims fee
Apr 9, 2014
Communication to designated inventor
Apr 9, 2014
Communication to designated inventor
Apr 2, 2014
Copy of the international preliminary report on patentability
Apr 2, 2014
Translation of the international preliminary report on patentability
Mar 25, 2014
(Electronic) Receipt
Mar 25, 2014
Abstract
Mar 25, 2014
Claims
Mar 25, 2014
Description
Mar 25, 2014
Drawings
Mar 25, 2014
Letter concerning the inventor
Mar 25, 2014
Request for entry into the European phase
Mar 18, 2014
Copy of the international preliminary report on patentability
Mar 18, 2014
Translation of the international preliminary report on patentability
Jan 10, 2014
Information on entry into European phase
Mar 27, 2013
Priority document (electronically transmitted)
Mar 7, 2013
Copy of the international search report
Mar 7, 2013
Copy of the translated international search report
Mar 7, 2013
International publication pamphlet

EP2752430

SUMITOMO SEIKA CHEMICALS

Application Number: EP12828832A
Filing Date: Aug 23, 2012
Status: Opposition Rejected; Oct 28, 2022
Publication Date: Jul 6, 2016
External Links: Slate, Register , Google Patents