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The patent EP2586609 was granted to Daramic on Dec 20, 2023. The application was filed on Nov 22, 2005 under application number EP12191233A. 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 |
|---|---|---|---|
| EUN SUK CHOI | Sep 18, 2019 | F & E PATENT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2940830 |
| DESCRIPTION | US3351495 |
| DESCRIPTION | US4600633 |
| DESCRIPTION | US4833172 |
| OPPOSITION | EP1215229 |
| OPPOSITION | JPH0753760 |
| OPPOSITION | US3351495 |
| OPPOSITION | US4833172 |
| OPPOSITION | US4937115 |
| OPPOSITION | US5942179 |
| OPPOSITION | US6103172 |
| OPPOSITION | US6153133 |
| SEARCH | JPH0525305 |
| SEARCH | US2003219587 |
| SEARCH | US4833172 |
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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Nov 23, 2023
Nov 23, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Nov 8, 2023
Sep 27, 2023
Sep 25, 2023
Sep 25, 2023
Sep 25, 2023
Sep 25, 2023
Refund of fees
Appeal
Sep 20, 2023
Sep 20, 2023
Sep 20, 2023
Sep 19, 2023
Sep 19, 2023
Sep 15, 2023
Sep 14, 2023
Sep 13, 2023
(Electronic) Receipt
Appeal
Sep 13, 2023
Sep 13, 2023
Withdrawal of an appeal
Appeal
Aug 3, 2023
(Electronic) Receipt
Appeal
Aug 3, 2023
Aug 3, 2023
Aug 3, 2023
Jul 27, 2023
Jul 20, 2023
Jul 20, 2023
Jul 19, 2023
Jul 14, 2023
(Electronic) Receipt
Appeal
Jul 14, 2023
Jul 14, 2023
Jul 10, 2023
Jul 7, 2023
(Electronic) Receipt
Appeal
Jul 7, 2023
Jul 7, 2023
Jun 22, 2023
Jun 16, 2023
Jun 16, 2023
Jun 13, 2023
Jun 5, 2023
Jun 2, 2023
May 30, 2023
(Electronic) Receipt
Appeal
May 30, 2023
May 30, 2023
May 29, 2023
(Electronic) Receipt
Appeal
May 29, 2023
May 29, 2023
May 29, 2023
May 29, 2023
Mar 20, 2023
Mar 20, 2023
Jan 23, 2023
Jan 18, 2023
(Electronic) Receipt
Appeal
Jan 18, 2023
Jan 18, 2023
Dec 23, 2022
Dec 20, 2022
(Electronic) Receipt
Appeal
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Dec 20, 2022
Oct 20, 2022
Sep 15, 2022
Sep 8, 2022
(Electronic) Receipt
Appeal
Sep 8, 2022
Sep 8, 2022
May 6, 2022
(Electronic) Receipt
Appeal
May 6, 2022
May 6, 2022
May 6, 2022
May 6, 2022
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Dec 8, 2021
Dec 3, 2021
(Electronic) Receipt
Appeal
Dec 3, 2021
Dec 3, 2021
Dec 3, 2021
Drawings
Appeal
Dec 3, 2021
Dec 3, 2021
Reply to appeal
Appeal
Jul 26, 2021
Jul 21, 2021
(Electronic) Receipt
Appeal
Jul 21, 2021
Jul 21, 2021
Jun 1, 2021
Jun 1, 2021
May 20, 2021
(Electronic) Receipt
Appeal
May 20, 2021
May 20, 2021
Notice of appeal
Appeal
Mar 19, 2021
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Means of redress
OPPO
Mar 11, 2021
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Jan 3, 2019
Nov 22, 2018
Decision to grant a European patent
Search/Exam
Oct 19, 2018
(Electronic) Receipt
Search/Exam
Oct 19, 2018
Filing of the translations of the claims
Search/Exam
Oct 19, 2018
French translation of claims
Search/Exam
Oct 19, 2018
German translation of the claims
Search/Exam
Oct 19, 2018
Letter accompanying subsequently filed items
Search/Exam
Jun 21, 2018
Jun 21, 2018
Jun 21, 2018
Intention to grant (signatures)
Search/Exam
Jun 21, 2018
Text intended for grant (clean copy)
Search/Exam
Jun 21, 2018
Feb 8, 2018
(Electronic) Receipt
Search/Exam
Feb 8, 2018
Amended claims with annotations
Search/Exam
Feb 8, 2018
Amended description with annotations
Search/Exam
Feb 8, 2018
Claims
Search/Exam
Feb 8, 2018
Description
Search/Exam
Feb 8, 2018
Letter accompanying subsequently filed items
Search/Exam
Feb 8, 2018
Oct 13, 2017
Annex to the communication
Search/Exam
Oct 13, 2017
Communication from the Examining Division
Search/Exam
Apr 7, 2017
Mar 22, 2017
Mar 3, 2017
(Electronic) Receipt
Search/Exam
Mar 3, 2017
Amended claims with annotations
Search/Exam
Mar 3, 2017
Claims
Search/Exam
Mar 3, 2017
Letter accompanying subsequently filed items
Search/Exam
Mar 3, 2017
Oct 25, 2016
Annex to the communication
Search/Exam
Oct 25, 2016
Communication from the Examining Division
Search/Exam
Aug 1, 2016
Oct 14, 2013
(Electronic) Receipt
Search/Exam
Oct 14, 2013
Oct 14, 2013
Amended claims with annotations
Search/Exam
Oct 14, 2013
Amendments received before examination
Search/Exam
Oct 14, 2013
Letter accompanying subsequently filed items
Search/Exam
May 6, 2013
Apr 15, 2013
Refund of fees
Search/Exam
Apr 4, 2013
Apr 4, 2013
European search opinion
Search/Exam
Apr 4, 2013
European search report
Search/Exam
Apr 4, 2013
Notification of forthcoming publication
Search/Exam
Mar 27, 2013
Communication to designated inventor
Search/Exam
Mar 27, 2013
Modified abstract
Search/Exam
Mar 21, 2013
(Electronic) Receipt
Search/Exam
Mar 21, 2013
Letter accompanying subsequently filed items
Search/Exam
Mar 21, 2013
Letter concerning the inventor
Search/Exam
Mar 14, 2013
Mar 7, 2013
Letter which had not been notified
Search/Exam
Feb 22, 2013
(Electronic) Receipt
Search/Exam
Feb 22, 2013
Abstract
Search/Exam
Feb 22, 2013
Drawings
Search/Exam
Feb 22, 2013
Letter accompanying subsequently filed items
Search/Exam
Feb 22, 2013
Jan 24, 2013
Jan 18, 2013
Communication to designated inventor
Search/Exam
Jan 18, 2013
Communication to designated inventor
Search/Exam
Jan 18, 2013
Communication to designated inventor
Search/Exam
Jan 18, 2013
Communication to designated inventor
Search/Exam
Nov 5, 2012
Nov 5, 2012
Claims
Search/Exam
Nov 5, 2012
Description
Search/Exam
Nov 5, 2012
Designation of inventor
Search/Exam
Nov 5, 2012
Designation of inventor
Search/Exam
Nov 5, 2012
Designation of inventor
Search/Exam
Nov 5, 2012
Designation of inventor
Search/Exam
Nov 5, 2012
Drawings
Search/Exam
Nov 5, 2012
Request for grant of a European patent
Search/Exam
Jul 3, 2006