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The patent EP2585693 was granted to Donaldson on Aug 12, 2020. The application was filed on Jun 22, 2011 under application number EP11729001A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 | Opposition Status |
|---|---|---|---|
| TENNECO | Mar 12, 2018 | STT SOZIETAT THEWS & THEWS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20110357418 |
| EXAMINATION | FR2891305 |
| EXAMINATION | GB2416718 |
| EXAMINATION | JP2005113826 |
| EXAMINATION | JP2009270449 |
| EXAMINATION | JP2010101236 |
| INTERNATIONAL-SEARCH-REPORT | EP0470361 |
| INTERNATIONAL-SEARCH-REPORT | EP2128398 |
| INTERNATIONAL-SEARCH-REPORT | US2006218902 |
| INTERNATIONAL-SEARCH-REPORT | US2009320726 |
| INTERNATIONAL-SEARCH-REPORT | WO2008024535 |
| OPPOSITION | EP2128398 |
| OPPOSITION | EP2204556 |
| OPPOSITION | JP2008215286 |
| OPPOSITION | JP2008274878 |
| OPPOSITION | JP2011099390 |
| OTHER | DE102004020138 |
| OTHER | DE102006019052 |
| OTHER | DE102009053950 |
| OTHER | DE202007010324U |
| OTHER | DE4012411 |
| OTHER | EP0470361 |
| OTHER | EP1262644 |
| OTHER | EP2204556 |
| OTHER | EP2295756 |
| OTHER | EP2325448 |
| OTHER | EP2465602 |
| OTHER | JP2008274878 |
| OTHER | JP2009150338 |
| OTHER | JP2010101236 |
| OTHER | US2007274877 |
| OTHER | US2011094206 |
| OTHER | US7896645 |
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 16, 2020
Jul 16, 2020
Jul 10, 2020
Jul 2, 2020
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Mar 23, 2020
Mar 23, 2020
Mar 23, 2020
Mar 18, 2020
Refund of fees
OPPO
Mar 17, 2020
Mar 16, 2020
Mar 11, 2020
Mar 10, 2020
(Electronic) Receipt
Appeal
Mar 10, 2020
Mar 10, 2020
Withdrawal of an appeal
Appeal
Feb 20, 2020
Feb 13, 2020
(Electronic) Receipt
Appeal
Feb 13, 2020
Feb 13, 2020
Notice of appeal
Appeal
Dec 12, 2019
Dec 11, 2019
Dec 9, 2019
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Means of redress
OPPO
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Sep 14, 2017
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(Electronic) Receipt
Search/Exam
Sep 5, 2017
Letter accompanying subsequently filed items
Search/Exam
Sep 5, 2017
Jun 14, 2017
May 18, 2017
Decision to grant a European patent
Search/Exam
May 4, 2017
(Electronic) Receipt
Search/Exam
May 4, 2017
French translation of claims
Search/Exam
May 4, 2017
German translation of the claims
Search/Exam
May 4, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2017
Feb 28, 2017
Feb 23, 2017
Observations by third parties
Search/Exam
Jan 13, 2017
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Intention to grant (signatures)
Search/Exam
Jan 13, 2017
Text intended for grant (clean copy)
Search/Exam
Jan 13, 2017
Oct 10, 2016
Oct 3, 2016
Observations by third parties
Search/Exam
Oct 3, 2016
Patent document filed by a Third party
Search/Exam
Oct 3, 2016
Patent document filed by a Third party
Search/Exam
Oct 3, 2016
Patent document filed by a Third party
Search/Exam
Oct 3, 2016
Patent document filed by a Third party
Search/Exam
Oct 3, 2016
Patent document filed by a Third party
Search/Exam
Sep 26, 2016
(Electronic) Receipt
Search/Exam
Sep 26, 2016
Amended claims with annotations
Search/Exam
Sep 26, 2016
Amended description with annotations
Search/Exam
Sep 26, 2016
Claims
Search/Exam
Sep 26, 2016
Description
Search/Exam
Sep 26, 2016
Letter accompanying subsequently filed items
Search/Exam
Sep 26, 2016
Jul 13, 2016
Jul 7, 2016
(Electronic) Receipt
Search/Exam
Jul 7, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 7, 2016
Mar 23, 2016
Annex to the communication
Search/Exam
Mar 23, 2016
Communication from the Examining Division
Search/Exam
Nov 18, 2015
(Electronic) Receipt
Search/Exam
Nov 18, 2015
Claims
Search/Exam
Nov 18, 2015
Drawings
Search/Exam
Nov 18, 2015
Letter accompanying subsequently filed items
Search/Exam
Nov 18, 2015
Sep 18, 2015
Sep 14, 2015
(Electronic) Receipt
Search/Exam
Sep 14, 2015
Letter accompanying subsequently filed items
Search/Exam
Sep 14, 2015
May 8, 2015
Annex to the communication
Search/Exam
May 8, 2015
Communication from the Examining Division
Search/Exam
May 4, 2015
Examination started
Search/Exam
Jan 5, 2015
Aug 19, 2014
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Citation filed by a third party
Search/Exam
Aug 12, 2014
Observations by third parties
Search/Exam
Aug 12, 2014
Observations by third parties
Search/Exam
Jan 24, 2014
Jan 15, 2014
Observations by third parties
Search/Exam
Jan 10, 2014
Observations by third parties
Search/Exam
Oct 14, 2013
Refund of fees
Search/Exam
Oct 14, 2013
Refund of fees
Search/Exam
Aug 2, 2013
Apr 26, 2013
(Electronic) Receipt
Search/Exam
Apr 26, 2013
Letter accompanying subsequently filed items
Search/Exam
Apr 25, 2013
(Electronic) Receipt
Search/Exam
Apr 25, 2013
Apr 25, 2013
Amended claims with annotations
Search/Exam
Apr 25, 2013
Amendments received before examination
Search/Exam
Apr 25, 2013
Letter accompanying subsequently filed items
Search/Exam
Apr 4, 2013
Mar 1, 2013
Feb 27, 2013
Communication to designated inventor
Search/Exam
Feb 27, 2013
Communication to designated inventor
Search/Exam
Jan 22, 2013
(Electronic) Receipt
Search/Exam
Jan 22, 2013
Jan 22, 2013
Amendments received before examination
Search/Exam
Jan 22, 2013
Request for entry into the European phase
Search/Exam
Jan 16, 2013
Nov 5, 2012
Information on entry into European phase
Search/Exam
Jan 17, 2012
Dec 29, 2011
Copy of the international search report
Search/Exam
Dec 29, 2011
Published international application - A1
Search/Exam
Oct 3, 2011
Oct 3, 2011
Oct 3, 2011
Jul 1, 2011
Abstract
PCTISA
Jul 1, 2011
Claims
PCTISA
Jul 1, 2011
Description
PCTISA
Jul 1, 2011
Drawings
PCTISA