Method For Producing Water-Absorbing Polymer Particles

Patent No. EP2539382 (titled "Method For Producing Water-Absorbing Polymer Particles") was filed by Basf on Feb 16, 2011. The application was issued on Oct 22, 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	Jul 22, 2015	BASSIL

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 1, 2018
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Feb 1, 2018
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jan 29, 2018
Termination of the opposition proceedings with maintenance of patent
Oct 26, 2017
Advice of delivery
Oct 26, 2017
Advice of delivery
Oct 18, 2017
Acknowledgement of a document
Oct 18, 2017
Acknowledgement of a document
Oct 18, 2017
Annex to the communication - opposition
Oct 18, 2017
Decision of the Opposition Division and instruction
Oct 18, 2017
Decision rejecting the opposition
Oct 18, 2017
Grounds for the decision (Annex) - opposition
Oct 18, 2017
Internal form - Opposition/addressees
Oct 18, 2017
Internal form - Opposition/addressees
Oct 18, 2017
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 18, 2017
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Oct 18, 2017
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Oct 18, 2017
Provision of a copy of the minutes - opposition procedure
Sep 29, 2017
Information about the result of oral proceedings
Sep 14, 2017
Request concerning representative opponent
Aug 3, 2017
Brief communication - Opposition proceedings
Jul 28, 2017
Letter regarding the opposition procedure (no time limit)
Jul 28, 2017
Patent document filed by a Third party
Jul 26, 2017
Request for interpreters during oral proceedings
Jun 22, 2017
Brief communication - Opposition proceedings
Jun 19, 2017
Request for interpreters during oral proceedings
Feb 15, 2017
CDS Clean up - amended data concerning the representative of the applicant (Association)
Feb 15, 2017
Submission concerning representation
Jan 10, 2017
Advice of delivery
Dec 23, 2016
Advice of delivery
Dec 20, 2016
Advice of delivery
Dec 9, 2016
Acknowledgement of a document
Dec 9, 2016
Acknowledgement of a document
Dec 9, 2016
Annex to the communication - opposition
Dec 9, 2016
Any annexes (other than citation) to an opposition letter
Dec 9, 2016
Information concerning oral proceedings
Dec 9, 2016
Preparation for oral proceedings
Dec 9, 2016
Summons to attend oral proceedings
Dec 9, 2016
Summons to attend oral proceedings
Mar 16, 2016
Communication of amended entries concerning the representative
Mar 3, 2016
CDS Clean up - amended applicant details
Jan 15, 2016
Brief communication - Opposition proceedings
Jan 4, 2016
Patent document cited during the opposition procedure
Jan 4, 2016
Patent document cited during the opposition procedure
Jan 4, 2016
Reply of the patent proprietor to the notice(s) of opposition
Aug 28, 2015
Communication of a notice of opposition and request to file observations
Aug 28, 2015
Notice of further oppositions to opponent(s)
Jul 31, 2015
Communication of a notice of opposition - first information to patent proprietor
Jul 22, 2015
(Electronic) Receipt
Jul 22, 2015
Any annexes (other than citation) to an opposition letter
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Non-patent literature cited during the opposition procedure
Jul 22, 2015
Notice of opposition
Jul 22, 2015
Notice of opposition
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Patent document cited during the opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Jul 22, 2015
Translation of the evidence during Opposition procedure
Oct 24, 2014
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 25, 2014
Decision to grant a European patent
Sep 9, 2014
(Electronic) Receipt
Sep 9, 2014
English translation of the claims
Sep 9, 2014
French translation of claims
Sep 9, 2014
Letter accompanying subsequently filed items
Jul 4, 2014
Bibliographic data of the European patent application
Jul 4, 2014
Communication about intention to grant a European patent
Jul 4, 2014
Intention to grant (signatures)
Jul 4, 2014
Text intended for grant
May 19, 2014
Examination started
Dec 5, 2012
Notification on forthcoming publication of bibliographic data
Oct 5, 2012
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Oct 2, 2012
Communication to designated inventor
Oct 2, 2012
Communication to designated inventor
Oct 2, 2012
Communication to designated inventor
Oct 2, 2012
Communication to designated inventor
Oct 2, 2012
Communication to designated inventor
Sep 11, 2012
Copy of the international preliminary report on patentability
Jul 13, 2012
(Electronic) Receipt
Jul 13, 2012
Request for entry into the European phase
Jul 6, 2012
Information on entry into European phase
Sep 19, 2011
Priority document (electronically transmitted)
Sep 1, 2011
Copy of the international search report
Sep 1, 2011
Copy of the international search report
Sep 1, 2011
Published international application - A1
Aug 1, 2011
Written opinion of the ISA, boxes No. I to VIII
Aug 1, 2011
Written opinion of the ISA, cover sheet
Aug 1, 2011
Written opinion of the ISA, supplemental box
Feb 16, 2011
(Electronic) Receipt
Feb 16, 2011
Abstract
Feb 16, 2011
Claims
Feb 16, 2011
Description
Feb 16, 2011
Priority document (RO-procedure)

EP2539382

BASF

Application Number: EP11703696A
Filing Date: Feb 16, 2011
Status: Opposition Rejected; Feb 2, 2018
Publication Date: Oct 22, 2014
External Links: Slate, Register , Google Patents

IP Verse

Method For Producing Water-Absorbing Polymer Particles

Patent Summary

Patent Family

Patent Oppositions

Dossier Documents

EP2539382