A Process For Producing Surface-Postcrosslinked Water-Absorbent Polymer Particles

Patent No. EP2922882 (titled "A Process For Producing Surface-Postcrosslinked Water-Absorbent Polymer Particles") was filed by Basf on Nov 7, 2013. The application was issued on Aug 3, 2022.

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
LIST TECHNOLOGY	Dec 28, 2018	PATENTANWALTE UND RECHTSANWALT WEISS
LIST TECHNOLOGY	Dec 28, 2018	UND RECHTSANWALT WEISS

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 7, 2022
Decision to maintain the European patent in amended form
Jul 7, 2022
Decision to maintain the European patent in amended form
Jul 1, 2022
Termination of the opposition proceedings with maintenance of patent
Jun 21, 2022
(Electronic) Receipt
Jun 21, 2022
Any annexes (other than citation) to an opposition letter
Jun 21, 2022
Filing of the translation of the amended claims
Jun 21, 2022
French translation of claims
Jun 21, 2022
German translation of the claims
Jun 10, 2022
Communication of bibliographic data
Jun 10, 2022
Communication to opponent concerning maintenance
Jun 10, 2022
Communication with request to file translations
Jun 7, 2022
Maintenance of the patent with the documents specified in the final decision
Feb 24, 2022
Advice of delivery
Feb 21, 2022
Advice of delivery
Feb 21, 2022
Decision of the Opposition Division and instruction
Feb 21, 2022
Grounds for the decision (Annex) - opposition
Feb 21, 2022
Interlocutory decision in opposition proceedings
Feb 21, 2022
Interlocutory decision in opposition proceedings
Feb 21, 2022
Means of redress
Feb 21, 2022
OPPODREX with handwritten amendments
Feb 21, 2022
Scanned annex to a communication - opposition procedure
Feb 21, 2022
Transmittal of decision / summons - opposition
Feb 21, 2022
Transmittal of decision / summons - opposition
Oct 15, 2020
Brief communication - Opposition proceedings
Oct 8, 2020
(Electronic) Receipt
Oct 8, 2020
Letter accompanying subsequently filed items
Oct 8, 2020
Reply to an examination report in opposition proceedings
Jun 10, 2020
Any annexes (other than citation) to an opposition letter
Jun 10, 2020
Communication inviting the parties to file observations
Jun 10, 2020
Communication inviting the parties to file observations
Jun 10, 2020
Communication inviting the parties to file observations
Jun 10, 2020
Internal form - Opposition/addressees
Jun 8, 2020
Notification concerning the date of oral proceedings
Jun 8, 2020
Notification concerning the date of oral proceedings
May 11, 2020
Brief communication - Opposition proceedings
Apr 30, 2020
(Electronic) Receipt
Apr 30, 2020
Amended description with annotations
Apr 30, 2020
Amended description with annotations
Apr 30, 2020
Auxiliary request during Opposition procedure
Apr 30, 2020
Auxiliary request during Opposition procedure - 01
Apr 30, 2020
Description
Apr 30, 2020
Description
Apr 30, 2020
Letter accompanying subsequently filed items
Apr 30, 2020
Main request during Opposition procedure
Apr 30, 2020
Main request during Opposition procedure
Apr 30, 2020
Written submission in preparation to/during oral proceedings
Jan 21, 2020
Refund of fees
Jan 3, 2020
Brief communication - Opposition proceedings
Dec 17, 2019
(Electronic) Receipt
Dec 17, 2019
Amended claims with annotations
Dec 17, 2019
Amended description with annotations
Dec 17, 2019
Claims
Dec 17, 2019
Description
Dec 17, 2019
Letter accompanying subsequently filed items
Dec 17, 2019
Written submission in preparation to/during oral proceedings
Nov 21, 2019
Brief communication - Opposition proceedings
Nov 18, 2019
(Electronic) Receipt
Nov 18, 2019
Letter accompanying subsequently filed items
Nov 18, 2019
Request for interpreters during oral proceedings
Nov 12, 2019
Advice of delivery
Nov 12, 2019
Advice of delivery
Nov 8, 2019
Acknowledgement of a document
Nov 8, 2019
Acknowledgement of a document
Nov 8, 2019
Annex to the communication - opposition
Nov 8, 2019
Information concerning oral proceedings
Nov 8, 2019
Summons to attend oral proceedings
Nov 8, 2019
Summons to attend oral proceedings
Oct 7, 2019
Brief communication - Opposition proceedings
Sep 24, 2019
(Electronic) Receipt
Sep 24, 2019
Amended description with annotations
Sep 24, 2019
Description
Sep 24, 2019
Letter accompanying subsequently filed items
Sep 24, 2019
Letter regarding the opposition procedure (no time limit)
Sep 5, 2019
Brief communication - Opposition proceedings
Aug 30, 2019
(Electronic) Receipt
Aug 30, 2019
Letter accompanying subsequently filed items
Aug 30, 2019
Letter regarding the opposition procedure (no time limit)
May 22, 2019
Brief communication - Opposition proceedings
May 17, 2019
(Electronic) Receipt
May 17, 2019
Amended claims with annotations
May 17, 2019
Claims
May 17, 2019
Letter accompanying subsequently filed items
May 17, 2019
Non-patent literature cited during the opposition procedure
May 17, 2019
Non-patent literature cited during the opposition procedure
May 17, 2019
Reply of the patent proprietor to the notice(s) of opposition
Jan 22, 2019
Communication of a notice of opposition and request to file observations
Jan 22, 2019
Notice of further oppositions to opponent(s)
Jan 14, 2019
Communication of a notice of opposition - first information to patent proprietor
Jan 2, 2019
(Electronic) Receipt
Jan 2, 2019
Letter accompanying subsequently filed items
Jan 2, 2019
Non-patent literature cited during the opposition procedure
Jan 2, 2019
Notice of opposition
Jan 2, 2019
Patent document cited during the opposition procedure
Jan 2, 2019
Patent document cited during the opposition procedure
Jan 2, 2019
Patent document cited during the opposition procedure
Dec 28, 2018
(Electronic) Receipt
Dec 28, 2018
Letter accompanying subsequently filed items
Dec 28, 2018
Letter accompanying subsequently filed items
Dec 28, 2018
Letter concerning fees and payments
Dec 28, 2018
Non-patent literature cited during the opposition procedure
Dec 28, 2018
Notice of opposition
Dec 28, 2018
Notice of opposition
Dec 28, 2018
Patent document cited during the opposition procedure
Dec 28, 2018
Patent document cited during the opposition procedure
Dec 28, 2018
Patent document cited during the opposition procedure
Apr 10, 2018
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 1, 2018
Decision to grant a European patent
Feb 14, 2018
(Electronic) Receipt
Feb 14, 2018
French translation of claims
Feb 14, 2018
German translation of the claims
Feb 14, 2018
Letter accompanying subsequently filed items
Nov 3, 2017
Bibliographic data of the European patent application
Nov 3, 2017
Communication about intention to grant a European patent
Nov 3, 2017
Intention to grant (signatures)
Nov 3, 2017
Text intended for grant (clean copy)
Nov 3, 2017
Text intended for grant (version for approval)
Jun 12, 2017
(Electronic) Receipt
Jun 12, 2017
Amended claims with annotations
Jun 12, 2017
Claims
Jun 12, 2017
Letter accompanying subsequently filed items
Jun 12, 2017
Reply to communication from the Examining Division
Jun 7, 2017
(Electronic) Receipt
Jun 7, 2017
Amended claims with annotations
Jun 7, 2017
Claims
Jun 7, 2017
Letter accompanying subsequently filed items
Jun 7, 2017
Reply to communication from the Examining Division
Mar 10, 2017
Annex to the communication
Mar 10, 2017
Communication from the Examining Division
Feb 15, 2017
CDS Clean up - amended data concerning the representative of the applicant (Association)
Feb 15, 2017
Submission concerning representation
Dec 21, 2016
(Electronic) Receipt
Dec 21, 2016
Amended claims with annotations
Dec 21, 2016
Claims
Dec 21, 2016
Letter accompanying subsequently filed items
Dec 21, 2016
Reply to communication from the Examining Division
Aug 31, 2016
Annex to the communication
Aug 31, 2016
Communication from the Examining Division
Aug 25, 2016
Examination started
Jul 15, 2016
Transmittal of third party observations to applicant
Jul 11, 2016
Non-patent literature filed by a third party
Jul 11, 2016
Observations by third parties
Jul 11, 2016
Patent document filed by a Third party
Jul 11, 2016
Patent document filed by a Third party
Jul 11, 2016
Patent document filed by a Third party
Mar 16, 2016
Communication of amended entries concerning the representative
Mar 10, 2016
Submission concerning change of applicant's representative
Mar 3, 2016
CDS Clean up - amended applicant details
Mar 3, 2016
Submission concerning change of applicant's address
Oct 22, 2015
(Electronic) Receipt
Oct 22, 2015
Amended claims filed after receipt of (European) search report
Oct 22, 2015
Amended claims with annotations
Oct 22, 2015
Amendments received before examination
Oct 22, 2015
Letter accompanying subsequently filed items
Sep 2, 2015
Notification on forthcoming publication of bibliographic data
Jul 20, 2015
Invitation to indicate correct address of inventor
Jul 11, 2015
Letter which had not been notified
Jul 10, 2015
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 30, 2015
Communication to designated inventor
Jun 12, 2015
Communication to applicant regarding observations by third parties
Jun 8, 2015
Copy of the international preliminary report on patentability
May 28, 2015
Citation filed by a third party
May 28, 2015
Observations by third parties
Apr 27, 2015
(Electronic) Receipt
Apr 27, 2015
Request for entry into the European phase
Apr 7, 2015
Information on entry into European phase
Jun 25, 2014
Priority document (electronically transmitted)
Jun 25, 2014
Priority document (electronically transmitted)
May 30, 2014
Copy of the international search report
May 30, 2014
Published international application - A1
Mar 20, 2014
Notification of the recording of a change
Jan 27, 2014
Written opinion of the ISA, boxes No. I to VIII
Jan 27, 2014
Written opinion of the ISA, cover sheet
Jan 27, 2014
Written opinion of the ISA, supplemental box
Nov 7, 2013
(Electronic) Receipt
Nov 7, 2013
Abstract
Nov 7, 2013
Claims
Nov 7, 2013
Description
Nov 7, 2013
Drawings
Nov 7, 2013
Priority document (RO-procedure)

EP2922882

BASF

Application Number: EP13788749A
Filing Date: Nov 7, 2013
Status: Patent Maintained As Amended; Jul 1, 2022
Publication Date: Aug 3, 2022
External Links: Slate, Register , Google Patents

IP Verse

A Process For Producing Surface-Postcrosslinked Water-Absorbent Polymer Particles

Patent Summary

Patent Family

Patent Oppositions (2)

Dossier Documents

EP2922882