Liquid Filtration Media Containing Melt-Blown Fibers

Patent No. EP2741838 (titled "Liquid Filtration Media Containing Melt-Blown Fibers") was filed by Donaldson on Aug 9, 2012. The application was issued on Apr 20, 2016.

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
MAHLE	Jan 20, 2017	BRP RENAUD & PARTNER MBB RECHTSANWALTE PATENTANWALTE STEUERBERATER
MANN HUMMEL	Jan 20, 2017	MAIWALD PATENT- UND RECHTSANWALTSGESELLSCHAFT MBH
CLARCOR	Jan 19, 2017	HOEGER

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

Jan 22, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jan 22, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jan 22, 2019
Communication to the parties concerning the termination of the opposition proceedings (opponent)
Jan 22, 2019
Communication to the parties concerning the termination of the opposition proceedings (proprietor)
Jan 17, 2019
Termination of the opposition proceedings with revocation of patent
Oct 8, 2018
Advice of delivery
Oct 5, 2018
(Electronic) Receipt
Oct 5, 2018
Advice of delivery
Oct 5, 2018
Letter accompanying subsequently filed items
Oct 4, 2018
Advice of delivery
Oct 2, 2018
Advice of delivery
Sep 28, 2018
Advice of delivery
Sep 28, 2018
Advice of delivery
Sep 28, 2018
Advice of delivery
Sep 27, 2018
Acknowledgement of a document
Sep 27, 2018
Acknowledgement of a document
Sep 27, 2018
Acknowledgement of a document
Sep 27, 2018
Acknowledgement of a document
Sep 27, 2018
Advice of delivery
Sep 27, 2018
Annex to the communication - opposition
Sep 27, 2018
Decision of the Opposition Division and instruction
Sep 27, 2018
Decision revoking the European patent
Sep 27, 2018
Grounds for the decision (Annex) - opposition
Sep 27, 2018
Internal form - Opposition/addressees
Sep 27, 2018
Internal form - Opposition/addressees
Sep 27, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Sep 27, 2018
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Sep 27, 2018
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Sep 27, 2018
Provision of a copy of the minutes - opposition procedure
Sep 12, 2018
Brief communication - Opposition proceedings
Sep 12, 2018
Brief communication - Opposition proceedings
Sep 12, 2018
Brief communication - Opposition proceedings
Sep 12, 2018
Information about the result of oral proceedings
Sep 10, 2018
Brief communication - Opposition proceedings
Sep 10, 2018
Brief communication - Opposition proceedings
Sep 10, 2018
Brief communication - Opposition proceedings
Sep 6, 2018
(Electronic) Receipt
Sep 6, 2018
Letter accompanying subsequently filed items
Sep 6, 2018
Written submission in preparation to/during oral proceedings
Sep 4, 2018
(Electronic) Receipt
Sep 4, 2018
Letter accompanying subsequently filed items
Sep 4, 2018
Non-patent literature cited during the opposition procedure
Sep 4, 2018
Written submission in preparation to/during oral proceedings
Aug 31, 2018
Communication of amended entries concerning the representative
Aug 8, 2018
General authorisation
Aug 8, 2018
Submission concerning change of applicant's representative
Jul 18, 2018
Brief communication - Opposition proceedings
Jul 18, 2018
Brief communication - Opposition proceedings
Jul 18, 2018
Brief communication - Opposition proceedings
Jul 17, 2018
Brief communication - Opposition proceedings
Jul 17, 2018
Brief communication - Opposition proceedings
Jul 17, 2018
Brief communication - Opposition proceedings
Jul 17, 2018
Brief communication - Opposition proceedings
Jul 12, 2018
(Electronic) Receipt
Jul 12, 2018
(Electronic) Receipt
Jul 12, 2018
Claims
Jul 12, 2018
Claims
Jul 12, 2018
Claims
Jul 12, 2018
Claims
Jul 12, 2018
Claims
Jul 12, 2018
Claims
Jul 12, 2018
Claims
Jul 12, 2018
Claims
Jul 12, 2018
Letter accompanying subsequently filed items
Jul 12, 2018
Letter accompanying subsequently filed items
Jul 12, 2018
Non-patent literature cited during the opposition procedure
Jul 12, 2018
Non-patent literature cited during the opposition procedure
Jul 12, 2018
Non-patent literature cited during the opposition procedure
Jul 12, 2018
Non-patent literature cited during the opposition procedure
Jul 12, 2018
Written submission in preparation to/during oral proceedings
Jul 12, 2018
Written submission in preparation to/during oral proceedings
Jul 11, 2018
(Electronic) Receipt
Jul 11, 2018
Letter accompanying subsequently filed items
Jul 11, 2018
Request for interpreters during oral proceedings
Jul 10, 2018
(Electronic) Receipt
Jul 10, 2018
Citation in opposition procedure
Jul 10, 2018
Letter accompanying subsequently filed items
Jul 10, 2018
Written submission in preparation to/during oral proceedings
Jun 20, 2018
Brief communication - Opposition proceedings
Jun 20, 2018
Brief communication - Opposition proceedings
Jun 20, 2018
Brief communication - Opposition proceedings
Jun 13, 2018
Request for interpreters during oral proceedings
May 16, 2018
Brief communication - Opposition proceedings
May 16, 2018
Brief communication - Opposition proceedings
May 16, 2018
Brief communication - Opposition proceedings
May 14, 2018
Request for interpreters during oral proceedings
May 9, 2018
Request for interpreters during oral proceedings
May 3, 2018
Brief communication - Opposition proceedings
May 3, 2018
Brief communication - Opposition proceedings
May 3, 2018
Brief communication - Opposition proceedings
May 3, 2018
Communication of amended entries
Apr 20, 2018
Request concerning representative opponent
Mar 13, 2018
Brief communication - Opposition proceedings
Mar 5, 2018
Letter which had not been notified
Feb 6, 2018
Annex to the communication - opposition
Feb 6, 2018
Notification concerning the date of oral proceedings
Feb 6, 2018
Notification concerning the date of oral proceedings
Feb 6, 2018
Notification concerning the date of oral proceedings
Feb 6, 2018
Notification concerning the date of oral proceedings
Jan 5, 2018
(Electronic) Receipt
Jan 5, 2018
Advice of delivery
Jan 5, 2018
Letter accompanying subsequently filed items
Jan 3, 2018
Advice of delivery
Jan 3, 2018
Advice of delivery
Dec 22, 2017
Brief communication - Opposition proceedings
Dec 22, 2017
Communication about missing advice of delivery
Dec 21, 2017
Advice of delivery
Dec 14, 2017
Brief communication - Opposition proceedings
Dec 14, 2017
Brief communication - Opposition proceedings
Dec 14, 2017
Brief communication - Opposition proceedings
Dec 7, 2017
(Electronic) Receipt
Dec 7, 2017
Advice of delivery
Dec 7, 2017
Advice of delivery
Dec 7, 2017
Letter accompanying subsequently filed items
Dec 7, 2017
Oral proceedings: Request for postponement
Dec 5, 2017
Advice of delivery
Dec 4, 2017
Advice of delivery
Dec 4, 2017
Advice of delivery
Dec 4, 2017
Advice of delivery
Nov 30, 2017
Acknowledgement of a document
Nov 30, 2017
Acknowledgement of a document
Nov 30, 2017
Acknowledgement of a document
Nov 30, 2017
Acknowledgement of a document
Nov 30, 2017
Annex to the communication - opposition
Nov 30, 2017
Information concerning oral proceedings
Nov 30, 2017
Preparation for oral proceedings
Nov 30, 2017
Summons to attend oral proceedings
Nov 30, 2017
Summons to attend oral proceedings
Nov 30, 2017
Summons to attend oral proceedings
Nov 30, 2017
Summons to attend oral proceedings
Sep 4, 2017
Communication confirming withdrawal from representation
Sep 4, 2017
Communication of amended entries concerning the representative
Aug 17, 2017
Brief communication - Opposition proceedings
Aug 17, 2017
Brief communication - Opposition proceedings
Aug 17, 2017
Brief communication - Opposition proceedings
Aug 14, 2017
Brief communication - Opposition proceedings
Aug 14, 2017
Brief communication - Opposition proceedings
Aug 14, 2017
Brief communication - Opposition proceedings
Aug 14, 2017
Confirmation of revocation of automatic debit order
Aug 10, 2017
(Electronic) Receipt
Aug 10, 2017
Letter accompanying subsequently filed items
Aug 10, 2017
Submission concerning change of applicant's representative
Aug 9, 2017
Letter relating to the automatic debiting procedure
Aug 8, 2017
Submission concerning change of applicant's representative
Jul 11, 2017
Brief communication - Opposition proceedings
Jul 11, 2017
Brief communication - Opposition proceedings
Jul 11, 2017
Brief communication - Opposition proceedings
Jul 6, 2017
(Electronic) Receipt
Jul 6, 2017
Amended claims with annotations
Jul 6, 2017
Any annexes (other than citation) to an opposition letter
Jul 6, 2017
Claims
Jul 6, 2017
Letter accompanying subsequently filed items
Jul 6, 2017
Reply of the patent proprietor to the notice(s) of opposition
Jun 23, 2017
Brief communication - Opposition proceedings
Jun 23, 2017
Brief communication - Opposition proceedings
Jun 23, 2017
Brief communication - Opposition proceedings
Jun 23, 2017
Refusal of request for extension of time limit
Jun 20, 2017
(Electronic) Receipt
Jun 20, 2017
Letter accompanying subsequently filed items
Jun 20, 2017
Request for extension of time limit
Feb 24, 2017
Brief communication - Opposition proceedings
Feb 24, 2017
Communication of a notice of opposition and request to file observations
Feb 24, 2017
Notice of further oppositions to opponent(s)
Feb 24, 2017
Notice of further oppositions to opponent(s)
Feb 24, 2017
Notice of further oppositions to opponent(s)
Feb 20, 2017
Letter regarding the opposition procedure (no time limit)
Feb 20, 2017
Letter regarding the opposition procedure (no time limit)
Feb 20, 2017
Letter regarding the opposition procedure (no time limit)
Feb 14, 2017
Communication of a notice of opposition - first information to patent proprietor
Feb 14, 2017
Communication of a notice of opposition - first information to patent proprietor
Feb 14, 2017
Communication of a notice of opposition - first information to patent proprietor
Jan 20, 2017
(Electronic) Receipt
Jan 20, 2017
(Electronic) Receipt
Jan 20, 2017
Letter regarding the opposition procedure (no time limit)
Jan 20, 2017
Letter regarding the opposition procedure (no time limit)
Jan 20, 2017
Non-patent literature cited during the opposition procedure
Jan 20, 2017
Notice of opposition
Jan 20, 2017
Notice of opposition
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 20, 2017
Patent document cited during the opposition procedure
Jan 19, 2017
(Electronic) Receipt
Jan 19, 2017
Letter regarding the opposition procedure (no time limit)
Jan 19, 2017
Notice of opposition
Jan 19, 2017
Patent document cited during the opposition procedure
Jan 19, 2017
Patent document cited during the opposition procedure
Jan 19, 2017
Patent document cited during the opposition procedure
Jan 19, 2017
Patent document cited during the opposition procedure
Apr 21, 2016
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Mar 24, 2016
Decision to grant a European patent
Feb 24, 2016
Refund of fees
Feb 23, 2016
Bibliographic data of the European patent application
Feb 23, 2016
Information about intention to grant a patent
Feb 23, 2016
Intention to grant (signatures)
Feb 23, 2016
Text intended for grant
Feb 12, 2016
Processing of request for correction of text proposed for grant or third party observations (from 01-04-2012)
Feb 8, 2016
Amended claims with annotations
Feb 8, 2016
Claims
Feb 8, 2016
Description
Feb 8, 2016
French translation of claims
Feb 8, 2016
German translation of the claims
Feb 8, 2016
Letter accompanying subsequently filed items
Feb 8, 2016
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Sep 28, 2015
Bibliographic data of the European patent application
Sep 28, 2015
Communication about intention to grant a European patent
Sep 28, 2015
Intention to grant (signatures)
Sep 28, 2015
Text intended for grant
Sep 3, 2015
Confirmation of revocation of automatic debit order
Sep 1, 2015
Letter relating to the automatic debiting procedure
Aug 31, 2015
Letter relating to the automatic debiting procedure
Jul 20, 2015
Examination started
Sep 29, 2014
Amended claims filed after receipt of (European) search report
Sep 29, 2014
Amended claims with annotations
Sep 29, 2014
Amendments received before examination
Sep 29, 2014
Letter accompanying subsequently filed items
May 21, 2014
Notification on forthcoming publication of bibliographic data
Mar 21, 2014
Communication concerning correction of deficiencies in written opinion/amendment of application/payment of claims fee
Mar 19, 2014
Communication to designated inventor
Mar 19, 2014
Communication to designated inventor
Mar 3, 2014
Copy of the international preliminary report on patentability
Feb 21, 2014
(Electronic) Receipt
Feb 21, 2014
Request for entry into the European phase
Jan 7, 2014
Information on entry into European phase
Aug 1, 2013
Copy of the international search report
Aug 1, 2013
International publication of the international search report
May 27, 2013
Written opinion of the ISA, boxes No. I to VIII
May 27, 2013
Written opinion of the ISA, cover sheet
May 27, 2013
Written opinion of the ISA, supplemental box
Mar 12, 2013
Priority document (electronically transmitted)
Feb 21, 2013
Published international application - A2
Feb 13, 2013
Notification of the recording of a change
Aug 20, 2012
Abstract
Aug 20, 2012
Claims
Aug 20, 2012
Description
Aug 20, 2012
Drawings
Aug 20, 2012
Submission concerning representation

EP2741838

DONALDSON

Application Number: EP12750664A
Filing Date: Aug 9, 2012
Status: Revoked; Jan 18, 2019
Publication Date: Apr 20, 2016
External Links: Slate, Register , Google Patents

IP Verse

Liquid Filtration Media Containing Melt-Blown Fibers

Patent Summary

Patent Family

Patent Oppositions (3)

Dossier Documents

EP2741838