IP Verse

Separator For Lithium Ion Secondary Battery And Method For Manufacturing The Separator

Patent No. EP2131417 (titled "Separator For Lithium Ion Secondary Battery And Method For Manufacturing The Separator") was filed by Asahi Kasei Chemicals on Nov 12, 2007. The application was issued on Aug 31, 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
TREOFAN GERMANY	May 31, 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

Jul 10, 2019
Communication to the parties concerning termination of the opposition proceedings - opposition rejected - no appeal lodged
Jul 10, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jul 5, 2019
Termination of the opposition proceedings with maintenance of patent
Apr 17, 2019
Advice of delivery
Apr 8, 2019
Advice of delivery
Apr 1, 2019
Advice of delivery
Mar 26, 2019
Acknowledgement of a document
Mar 26, 2019
Acknowledgement of a document
Mar 26, 2019
Annex to the communication - opposition
Mar 26, 2019
Decision of the Opposition Division and instruction
Mar 26, 2019
Decision rejecting the opposition
Mar 26, 2019
Grounds for the decision (Annex) - opposition
Mar 26, 2019
Internal form - Opposition/addressees
Mar 26, 2019
Internal form - Opposition/addressees
Mar 26, 2019
Means of redress
Mar 26, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 26, 2019
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Mar 26, 2019
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Mar 26, 2019
Provision of a copy of the minutes - opposition procedure
Mar 26, 2019
Scanned annex to a communication - opposition procedure
Jan 22, 2019
Information about the result of oral proceedings
Jan 18, 2019
Brief communication - Opposition proceedings
Jan 18, 2019
Brief communication - Opposition proceedings
Jan 8, 2019
Brief communication - Opposition proceedings
Jan 2, 2019
(Electronic) Receipt
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Auxiliary request during Opposition procedure
Jan 2, 2019
Citation in opposition procedure
Jan 2, 2019
Citation in opposition procedure
Jan 2, 2019
Citation in opposition procedure
Jan 2, 2019
Citation in opposition procedure
Jan 2, 2019
Citation in opposition procedure
Jan 2, 2019
Citation in opposition procedure
Jan 2, 2019
Claims
Jan 2, 2019
Letter accompanying subsequently filed items
Jan 2, 2019
Written submission in preparation to/during oral proceedings
Nov 28, 2018
Brief communication - Opposition proceedings
Nov 26, 2018
Brief communication - Opposition proceedings
Nov 22, 2018
(Electronic) Receipt
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Auxiliary request during Opposition procedure
Nov 22, 2018
Claims
Nov 22, 2018
Letter accompanying subsequently filed items
Nov 22, 2018
Non-patent literature cited during the opposition procedure
Nov 22, 2018
Non-patent literature cited during the opposition procedure
Nov 22, 2018
Written submission in preparation to/during oral proceedings
Nov 22, 2018
Written submission in preparation to/during oral proceedings
Nov 19, 2018
Non-patent literature cited during the opposition procedure
Nov 19, 2018
Non-patent literature cited during the opposition procedure
Nov 19, 2018
Request for interpreters during oral proceedings
Nov 19, 2018
Written submission in preparation to/during oral proceedings
Nov 19, 2018
Written submission in preparation to/during oral proceedings
Aug 1, 2018
Brief communication - Opposition proceedings
Jul 30, 2018
Advice of delivery
Jul 26, 2018
(Electronic) Receipt
Jul 26, 2018
Advice of delivery
Jul 26, 2018
Letter accompanying subsequently filed items
Jul 26, 2018
Request for interpreters during oral proceedings
Jun 25, 2018
Advice of delivery
Jun 25, 2018
Advice of delivery
Jun 22, 2018
Advice of delivery
Jun 19, 2018
Acknowledgement of a document
Jun 19, 2018
Acknowledgement of a document
Jun 19, 2018
Annex to the communication - opposition
Jun 19, 2018
Information concerning oral proceedings
Jun 19, 2018
Information concerning oral proceedings
Jun 19, 2018
Preparation for oral proceedings
Jun 19, 2018
Summons to attend oral proceedings
Jun 19, 2018
Summons to attend oral proceedings
Jan 17, 2018
Brief communication - Opposition proceedings
Jan 12, 2018
(Electronic) Receipt
Jan 12, 2018
Auxiliary request during Opposition procedure
Jan 12, 2018
Auxiliary request during Opposition procedure
Jan 12, 2018
Auxiliary request during Opposition procedure
Jan 12, 2018
Auxiliary request during Opposition procedure
Jan 12, 2018
Auxiliary request during Opposition procedure
Jan 12, 2018
Auxiliary request during Opposition procedure
Jan 12, 2018
Auxiliary request during Opposition procedure
Jan 12, 2018
Clean copy of description pages in the opposition procedure
Jan 12, 2018
Letter regarding the opposition procedure (no time limit)
Jan 12, 2018
Main request during Opposition procedure
Jan 12, 2018
Reply of the patent proprietor to the notice(s) of opposition
Nov 17, 2017
Brief communication - Opposition proceedings
Nov 17, 2017
Grant of extension of time limit (opposition procedure)
Nov 14, 2017
(Electronic) Receipt
Nov 14, 2017
Letter accompanying subsequently filed items
Nov 14, 2017
Request for extension of time limit
Jul 5, 2017
Communication of a notice of opposition and request to file observations
Jul 5, 2017
Notice of further oppositions to opponent(s)
Jun 13, 2017
Communication of a notice of opposition - first information to patent proprietor
Jun 1, 2017
Non-patent literature cited during the opposition procedure
Jun 1, 2017
Non-patent literature cited during the opposition procedure
Jun 1, 2017
Non-patent literature cited during the opposition procedure
Jun 1, 2017
Non-patent literature cited during the opposition procedure
Jun 1, 2017
Non-patent literature cited during the opposition procedure
Jun 1, 2017
Non-patent literature cited during the opposition procedure
Jun 1, 2017
Non-patent literature cited during the opposition procedure
Jun 1, 2017
Notice of opposition
Jun 1, 2017
Notice of opposition
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Patent document cited during the opposition procedure
Jun 1, 2017
Payment of fees and costs
May 31, 2017
Non-patent literature cited during the opposition procedure
May 31, 2017
Non-patent literature cited during the opposition procedure
May 31, 2017
Non-patent literature cited during the opposition procedure
May 31, 2017
Notice of opposition
May 31, 2017
Notice of opposition
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Patent document cited during the opposition procedure
May 31, 2017
Payment of fees and costs
May 31, 2017
Payment of fees and costs
Aug 31, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Aug 4, 2016
Decision to grant a European patent
Jul 21, 2016
(Electronic) Receipt
Jul 21, 2016
Filing of the translations of the claims
Jul 21, 2016
French translation of claims
Jul 21, 2016
German translation of the claims
Jul 21, 2016
Letter accompanying subsequently filed items
Jun 20, 2016
Bibliographic data of the European patent application
Jun 20, 2016
Brief communication to applicant/representative
Jun 15, 2016
Communication of the registration of a transfer or change of name and/or address
Jun 1, 2016
(Electronic) Receipt
Jun 1, 2016
Annexes in respect of a client data request
Jun 1, 2016
Letter accompanying subsequently filed items
Jun 1, 2016
Submission concerning a transfer of rights (applicant)
May 31, 2016
Letter concerning the inventor
May 9, 2016
Submission concerning representation
May 2, 2016
Bibliographic data of the European patent application
May 2, 2016
Communication about intention to grant a European patent
May 2, 2016
Intention to grant (signatures)
May 2, 2016
Text intended for grant (clean copy)
May 2, 2016
Text intended for grant (version for approval)
Apr 22, 2016
Submission concerning representation
Nov 30, 2015
(Electronic) Receipt
Nov 30, 2015
Claims
Nov 30, 2015
Letter accompanying subsequently filed items
Nov 30, 2015
Reply to communication from the Examining Division
Nov 20, 2015
Grant of extension of time limit (examination procedure)
Nov 16, 2015
Request for extension of time limit to communication from the Examining Division
Sep 18, 2015
Annex to the communication
Sep 18, 2015
Communication from the Examining Division
Jul 6, 2015
(Electronic) Receipt
Jul 6, 2015
Claims
Jul 6, 2015
Description
Jul 6, 2015
Letter accompanying subsequently filed items
Jul 6, 2015
Reply to communication from the Examining Division
Mar 3, 2015
Enquiry as to when a communication from the Examining Division can be expected
Mar 2, 2015
Annex to the communication
Mar 2, 2015
Communication from the Examining Division
Apr 4, 2014
Examination started
Aug 10, 2011
Amended claims filed after receipt of (European) search report
Aug 10, 2011
Amended claims filed after receipt of (European) search report
Aug 10, 2011
Amended claims filed after receipt of (European) search report
Aug 10, 2011
Amendments received before examination
Aug 10, 2011
Non-patent literature cited during the examination procedure
Jan 31, 2011
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Jan 12, 2011
Communication regarding the transmission of the European search report
Jan 12, 2011
European search opinion
Jan 12, 2011
Supplementary European search report
Dec 15, 2010
General enquiry
Mar 11, 2010
CDS Clean up - amended data concerning the representative of the applicant (Association)
Mar 8, 2010
Submission concerning representation
Nov 11, 2009
Notification of forthcoming publication
Sep 22, 2009
Communication regarding possible amendment of claims/payment of claims fees
Jul 17, 2009
Brief communication to applicant/representative
Jun 10, 2009
Translation of the international preliminary report on patentability
Jun 3, 2009
(Electronic) Receipt
Jun 3, 2009
Abstract
Jun 3, 2009
Annex
Jun 3, 2009
Annex
Jun 3, 2009
Claims
Jun 3, 2009
Description
Jun 3, 2009
Request for entry into the European phase
Jun 2, 2009
Copy of the international preliminary report on patentability
Mar 27, 2009
Information on entry into European phase
Mar 6, 2009
Notification of the recording of a change
Jun 10, 2008
Priority document (electronically transmitted)
May 22, 2008
Copy of the international search report
May 22, 2008
Copy of the translated international search report
May 22, 2008
International publication pamphlet

EP2131417

ASAHI KASEI CHEMICALS

Application Number: EP07831679A
Filing Date: Nov 12, 2007
Status: Opposition Rejected; Jul 12, 2019
Publication Date: Aug 31, 2016
External Links: Slate, Register , Google Patents