Preparation Method Of Superabsorbent Polymer

Patent No. EP2643392 (titled "Preparation Method Of Superabsorbent Polymer") was filed by LG Chem on Nov 22, 2011. The application was issued on Dec 31, 2014.

Patent Family

Statuses, jurisdictions and citation links are shared on request.

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	Sep 30, 2015	VIRNEKAS
EVONIK OPERATIONS	Sep 30, 2015	HEIROTH

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

Feb 25, 2021
Termination of the opposition proceedings with revocation of patent
Feb 18, 2021
Advice of delivery
Feb 18, 2021
Advice of delivery
Feb 17, 2021
Advice of delivery
Feb 11, 2021
Decision of the Board of Appeal
Feb 11, 2021
F3032 Notification(s) of the decision
Feb 11, 2021
F3032 Notification(s) of the decision
Feb 11, 2021
F3032 Notification(s) of the decision
Feb 1, 2021
Advice of delivery
Jan 26, 2021
F3013 Oral Proceedings: Forwarding minutes
Jan 26, 2021
F3013 Oral Proceedings: Forwarding minutes
Jan 26, 2021
F3013 Oral Proceedings: Forwarding minutes
Jan 26, 2021
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Jan 21, 2021
Advice of delivery
Jan 18, 2021
Advice of delivery
Jan 18, 2021
Advice of delivery
Jan 14, 2021
(Electronic) Receipt
Jan 13, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Jan 13, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Jan 13, 2021
F3017 Oral Proceedings: Notification of cancellation/postponing
Jan 7, 2021
Advice of delivery
Dec 28, 2020
(Electronic) Receipt
Dec 22, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 22, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 22, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Dec 21, 2020
F3345 Forwarding of submissions to parties
Dec 21, 2020
F3345 Forwarding of submissions to parties
Dec 18, 2020
F3345 Forwarding of submissions to parties
Dec 18, 2020
F3345 Forwarding of submissions to parties
Dec 16, 2020
(Electronic) Receipt
Dec 16, 2020
Letter accompanying subsequently filed items
Dec 16, 2020
Oral proceedings: Request for postponement
Dec 15, 2020
(Electronic) Receipt
Dec 15, 2020
Letter accompanying subsequently filed items
Dec 15, 2020
Request for interpreters during oral proceedings
Nov 23, 2020
Advice of delivery
Nov 20, 2020
Advice of delivery
Nov 20, 2020
Advice of delivery
Nov 18, 2020
Advice of delivery
Nov 16, 2020
Advice of delivery
Nov 16, 2020
F3017 Oral Proceedings: Notification of cancellation/postponing
Nov 16, 2020
F3017 Oral Proceedings: Notification of cancellation/postponing
Nov 16, 2020
F3017 Oral Proceedings: Notification of cancellation/postponing
Nov 13, 2020
F3345 Forwarding of submissions to parties
Nov 13, 2020
F3345 Forwarding of submissions to parties
Nov 11, 2020
F3014 Oral Proceedings: Order cancelling/postponing
Nov 9, 2020
(Electronic) Receipt
Nov 9, 2020
Annexes (other than cited documents) regarding appeal procedure
Nov 9, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 9, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 9, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 9, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 9, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 9, 2020
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Nov 9, 2020
F3345 Forwarding of submissions to parties
Nov 9, 2020
F3345 Forwarding of submissions to parties
Nov 9, 2020
Letter accompanying subsequently filed items
Nov 9, 2020
Oral proceedings: Request for postponement
Nov 6, 2020
Advice of delivery
Nov 5, 2020
Advice of delivery
Nov 3, 2020
(Electronic) Receipt
Nov 3, 2020
Advice of delivery
Nov 3, 2020
Annexes (other than cited documents) regarding appeal procedure
Nov 3, 2020
Letter accompanying subsequently filed items
Nov 3, 2020
Oral proceedings: Request for postponement
Oct 30, 2020
F3010 Oral proceedings: order for summons
Oct 30, 2020
F3011.1 Oral Proceedings: summons
Oct 30, 2020
F3011.1 Oral Proceedings: summons
Oct 30, 2020
F3011.1 Oral Proceedings: summons
Oct 27, 2020
Composition of the board (T)
Feb 13, 2020
F3345 Forwarding of submissions to parties
Feb 13, 2020
F3345 Forwarding of submissions to parties
Feb 13, 2020
F3345 Forwarding of submissions to parties
Feb 13, 2020
F3345 Forwarding of submissions to parties
Feb 10, 2020
(Electronic) Receipt
Feb 10, 2020
(Electronic) Receipt
Feb 10, 2020
Letter accompanying subsequently filed items
Feb 10, 2020
Letter accompanying subsequently filed items
Feb 10, 2020
Non-Patent Literature cited during the appeal procedure
Feb 10, 2020
Reply to appeal
Feb 10, 2020
Reply to appeal
Oct 8, 2019
F3936 Acknowledgement of receipt Board of Appeal
Oct 8, 2019
F3936 Acknowledgement of receipt Board of Appeal
Oct 4, 2019
Advice of delivery
Oct 2, 2019
Advice of delivery
Oct 1, 2019
F3936 Acknowledgement of receipt Board of Appeal
Sep 30, 2019
F3326 Communication with time limit (inter partes)
Sep 30, 2019
F3326 Communication with time limit (inter partes)
Sep 30, 2019
F3345 Forwarding of submissions to parties
Sep 26, 2019
F3345 Forwarding of submissions to parties
Sep 23, 2019
(Electronic) Receipt
Sep 23, 2019
Letter accompanying subsequently filed items
Sep 23, 2019
Letter relating to Appeal Procedure
Apr 4, 2019
Composition of the board (T)
Aug 17, 2018
Communication of the registration of a transfer or change of name and/or address
Aug 7, 2018
Submission concerning change of applicant's address
May 11, 2018
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
May 11, 2018
F3344 Setting time limit for reply/ file observations to appeal (inter partes)
May 4, 2018
(Electronic) Receipt
May 4, 2018
Amended claims with annotations
May 4, 2018
Amended claims with annotations
May 4, 2018
Cited document during appeal procedure
May 4, 2018
Cited document during appeal procedure
May 4, 2018
Cited document during appeal procedure
May 4, 2018
Claims
May 4, 2018
Claims
May 4, 2018
Claims
May 4, 2018
Letter accompanying subsequently filed items
May 4, 2018
Statement of grounds of appeal
May 4, 2018
Statement of grounds of appeal
Mar 16, 2018
F3204 Communication of the file number to the parties
Mar 16, 2018
F3204 Communication of the file number to the parties
Mar 16, 2018
F3204 Communication of the file number to the parties
Mar 12, 2018
Processing of an appeal
Mar 9, 2018
(Electronic) Receipt
Mar 9, 2018
Letter accompanying subsequently filed items
Mar 9, 2018
Notice of appeal
Feb 28, 2018
Advice of delivery
Feb 15, 2018
Advice of delivery
Jan 26, 2018
Advice of delivery
Jan 16, 2018
Advice of delivery
Jan 15, 2018
Advice of delivery
Jan 15, 2018
Advice of delivery
Jan 10, 2018
Acknowledgement of a document
Jan 10, 2018
Acknowledgement of a document
Jan 10, 2018
Acknowledgement of a document
Jan 10, 2018
Annex to the communication - opposition
Jan 10, 2018
Decision of the Opposition Division and instruction
Jan 10, 2018
Decision revoking the European patent
Jan 10, 2018
Grounds for the decision (Annex) - opposition
Jan 10, 2018
Internal form - Opposition/addressees
Jan 10, 2018
Internal form - Opposition/addressees
Jan 10, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 10, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Jan 10, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Jan 10, 2018
Provision of a copy of the minutes - opposition procedure
Jan 10, 2018
Scanned annex to a communication - opposition procedure
Jan 10, 2018
Scanned annex to a communication - opposition procedure
Dec 12, 2017
Information about the result of oral proceedings
Dec 6, 2017
Brief communication - Opposition proceedings
Dec 6, 2017
Brief communication - Opposition proceedings
Dec 1, 2017
Letter regarding the opposition procedure (no time limit)
Nov 22, 2017
Letter regarding the opposition procedure (no time limit)
Nov 7, 2017
Letter regarding the opposition procedure (no time limit)
Nov 2, 2017
Brief communication - Opposition proceedings
Nov 2, 2017
Brief communication - Opposition proceedings
Oct 24, 2017
Letter regarding the opposition procedure (no time limit)
Oct 24, 2017
Non-patent literature cited during the opposition procedure
Oct 19, 2017
Brief communication - Opposition proceedings
Oct 19, 2017
Brief communication - Opposition proceedings
Oct 17, 2017
Brief communication - Opposition proceedings
Oct 17, 2017
Brief communication - Opposition proceedings
Oct 12, 2017
Letter regarding the opposition procedure (no time limit)
Oct 12, 2017
Non-patent literature cited during the opposition procedure
Oct 12, 2017
Patent document cited during the opposition procedure
Oct 11, 2017
Any annexes (other than citation) to an opposition letter
Oct 11, 2017
Any annexes (other than citation) to an opposition letter
Oct 11, 2017
Auxiliary request during Opposition procedure
Oct 11, 2017
Auxiliary request during Opposition procedure
Oct 11, 2017
Auxiliary request during Opposition procedure
Oct 11, 2017
Auxiliary request during Opposition procedure
Oct 11, 2017
Auxiliary request during Opposition procedure
Oct 11, 2017
Auxiliary request during Opposition procedure
Oct 11, 2017
Letter regarding the opposition procedure (no time limit)
Oct 11, 2017
Main request during Opposition procedure
Oct 11, 2017
Main request during Opposition procedure
Oct 9, 2017
Request for interpreters during oral proceedings
Oct 6, 2017
Brief communication - Opposition proceedings
Oct 6, 2017
Brief communication - Opposition proceedings
Oct 4, 2017
Brief communication - Opposition proceedings
Oct 4, 2017
Brief communication - Opposition proceedings
Sep 29, 2017
Request for interpreters during oral proceedings
Sep 27, 2017
Request for interpreters during oral proceedings
Jul 13, 2017
Advice of delivery
May 11, 2017
Submission concerning representation
Jan 23, 2017
Advice of delivery
Jan 11, 2017
Advice of delivery
Jan 11, 2017
Advice of delivery
Jan 10, 2017
Advice of delivery
Jan 10, 2017
Advice of delivery
Jan 4, 2017
Acknowledgement of a document
Jan 4, 2017
Acknowledgement of a document
Jan 4, 2017
Acknowledgement of a document
Jan 4, 2017
Annex to the communication - opposition
Jan 4, 2017
Information concerning oral proceedings
Jan 4, 2017
Preparation for oral proceedings
Jan 4, 2017
Summons to attend oral proceedings
Jan 4, 2017
Summons to attend oral proceedings
Jan 4, 2017
Summons to attend oral proceedings
Dec 22, 2016
Letter regarding the opposition procedure (no time limit)
Dec 9, 2016
Letter regarding the opposition procedure (no time limit)
Oct 28, 2016
Brief communication - Opposition proceedings
Oct 28, 2016
Brief communication - Opposition proceedings
Oct 28, 2016
Communication of amended entries
Oct 13, 2016
Request concerning representative opponent
May 20, 2016
Brief communication - Opposition proceedings
May 20, 2016
Brief communication - Opposition proceedings
May 4, 2016
Main request during Opposition procedure
May 4, 2016
Main request during Opposition procedure
May 4, 2016
Reply of the patent proprietor to the notice(s) of opposition
Mar 8, 2016
Grant of extension of time limit (opposition procedure)
Mar 2, 2016
Request for extension of time limit
Nov 6, 2015
Communication of a notice of opposition and request to file observations
Nov 6, 2015
Notice of further oppositions to opponent(s)
Nov 6, 2015
Notice of further oppositions to opponent(s)
Oct 9, 2015
Communication of a notice of opposition - first information to patent proprietor
Sep 30, 2015
(Electronic) Receipt
Sep 30, 2015
Citation in opposition procedure
Sep 30, 2015
Citation in opposition procedure
Sep 30, 2015
Citation in opposition procedure
Sep 30, 2015
Filing of a new opposition
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Non-patent literature cited during the opposition procedure
Sep 30, 2015
Notice of opposition
Sep 30, 2015
Notice of opposition
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Patent document cited during the opposition procedure
Sep 30, 2015
Payment of fees and costs
Dec 31, 2014
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Dec 4, 2014
Decision to grant a European patent
Nov 19, 2014
(Electronic) Receipt
Nov 19, 2014
Filing of the translations of the claims
Nov 19, 2014
French translation of claims
Nov 19, 2014
German translation of the claims
Nov 19, 2014
Letter accompanying subsequently filed items
Oct 6, 2014
Bibliographic data of the European patent application
Oct 6, 2014
Communication about intention to grant a European patent
Oct 6, 2014
Intention to grant (signatures)
Oct 6, 2014
Text intended for grant
Aug 25, 2014
(Electronic) Receipt
Aug 25, 2014
Letter accompanying subsequently filed items
Aug 25, 2014
Maintenance of the application
Jul 21, 2014
Submission concerning representation
Apr 22, 2014
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Apr 1, 2014
Communication regarding the transmission of the European search report
Apr 1, 2014
European search opinion
Apr 1, 2014
Supplementary European search report
Nov 29, 2013
(Electronic) Receipt
Nov 29, 2013
Letter accompanying subsequently filed items
Sep 4, 2013
Notification on forthcoming publication of bibliographic data
Aug 20, 2013
Communication to designated inventor
Aug 13, 2013
(Electronic) Receipt
Aug 13, 2013
Letter accompanying subsequently filed items
Aug 13, 2013
Letter concerning the inventor
Aug 7, 2013
Invitation to indicate correct address of inventor
Aug 1, 2013
Letter which had not been notified
Jun 28, 2013
Communication regarding possible amendment of the application/payment of claims fee
Jun 26, 2013
Communication to designated inventor
Jun 26, 2013
Communication to designated inventor
Jun 26, 2013
Communication to designated inventor
Jun 26, 2013
Communication to designated inventor
Jun 26, 2013
Communication to designated inventor
Jun 26, 2013
Communication to designated inventor
Jun 26, 2013
Communication to designated inventor
Jun 7, 2013
Copy of the international preliminary report on patentability
Apr 25, 2013
Notification of the recording of a change
Apr 25, 2013
Notification of the recording of a change
Mar 25, 2013
Information regarding early processing
Mar 21, 2013
(Electronic) Receipt
Mar 21, 2013
Letter accompanying subsequently filed items
Mar 21, 2013
Statement of non-availability of priority search results
Mar 15, 2013
(Electronic) Receipt
Mar 15, 2013
Request for entry into the European phase
Sep 27, 2012
Copy of the international search report
Sep 27, 2012
International publication of the international search report
Jun 18, 2012
Priority document (electronically transmitted)
May 31, 2012
Published international application - A2

EP2643392

LG CHEM

Application Number: EP11842769A
Filing Date: Nov 22, 2011
Status: Revoked; Feb 26, 2021
Publication Date: Dec 31, 2014
External Links: Slate, Register , Google Patents

IP Verse

Preparation Method Of Superabsorbent Polymer

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2643392