The patent EP3523007 was granted to Eurofilters on Dec 16, 2020. The application was originally filed on Sep 6, 2017 under application number EP17761895A. The patent is currently recorded with a legal status of "Revoked".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | CN101747596 |
| DESCRIPTION | DE19919809 |
| DESCRIPTION | DE202006020047U |
| DESCRIPTION | DE202008003248U |
| DESCRIPTION | DE202008005050U |
| DESCRIPTION | EP0960645 |
| DESCRIPTION | EP1198280 |
| DESCRIPTION | EP1254693 |
| DESCRIPTION | EP1795247 |
| DESCRIPTION | EP1795427 |
| DESCRIPTION | EP2263508 |
| DESCRIPTION | EP2301404 |
| DESCRIPTION | EP2433695 |
| DESCRIPTION | EP2442703 |
| DESCRIPTION | US2009223190 |
| DESCRIPTION | WO0103802 |
| DESCRIPTION | WO2011047764 |
| DESCRIPTION | WO2011057641 |
| DESCRIPTION | WO2013106392 |
| INTERNATIONAL-SEARCH-REPORT | EP0960645 |
| INTERNATIONAL-SEARCH-REPORT | US2009223190 |
| INTERNATIONAL-SEARCH-REPORT | US2011030557 |
| INTERNATIONAL-SEARCH-REPORT | WO2011057641 |
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Date
Description
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Oct 1, 2024
Oct 1, 2024
Oct 1, 2024
Sep 12, 2024
Sep 12, 2024
Sep 11, 2024
Sep 6, 2024
Sep 5, 2024
(Electronic) Receipt
Appeal
Sep 5, 2024
Sep 5, 2024
Aug 21, 2024
Aug 16, 2024
(Electronic) Receipt
Appeal
Aug 16, 2024
Aug 16, 2024
Jul 10, 2024
Jul 5, 2024
(Electronic) Receipt
Appeal
Jul 5, 2024
Jul 5, 2024
Jun 27, 2024
Jun 27, 2024
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Jun 24, 2024
May 27, 2024
Mar 27, 2024
Mar 25, 2024
Mar 25, 2024
Mar 22, 2024
(Electronic) Receipt
Appeal
Mar 22, 2024
Mar 22, 2024
Reply to appeal
Appeal
Mar 6, 2024
Mar 1, 2024
(Electronic) Receipt
Appeal
Mar 1, 2024
Mar 1, 2024
Feb 28, 2024
Feb 27, 2024
(Electronic) Receipt
Appeal
Feb 27, 2024
Feb 27, 2024
Feb 1, 2024
Feb 1, 2024
Jan 12, 2024
Jan 12, 2024
Jan 9, 2024
Jan 9, 2024
Nov 22, 2023
Nov 13, 2023
(Electronic) Receipt
Appeal
Nov 13, 2023
Nov 13, 2023
Nov 13, 2023
Aug 22, 2023
Aug 21, 2023
Aug 21, 2023
Aug 14, 2023
(Electronic) Receipt
Appeal
Aug 14, 2023
Aug 14, 2023
Notice of appeal
Appeal
Jul 17, 2023
Jul 14, 2023
Jul 14, 2023
Jul 14, 2023
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Jul 14, 2023
Jul 14, 2023
Means of redress
OPPO
Jul 14, 2023
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Jun 6, 2023
May 3, 2023
General enquiry
OPPO
May 3, 2023
Apr 17, 2023
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Jan 11, 2021
Nov 19, 2020
Decision to grant a European patent
Search/Exam
Nov 6, 2020
(Electronic) Receipt
Search/Exam
Nov 6, 2020
English translation of the claims
Search/Exam
Nov 6, 2020
French translation of claims
Search/Exam
Nov 6, 2020
Letter accompanying subsequently filed items
Search/Exam
Aug 4, 2020
Aug 4, 2020
Aug 4, 2020
Intention to grant (signatures)
Search/Exam
Aug 4, 2020
Text intended for grant (clean copy)
Search/Exam
Aug 4, 2020
Jun 10, 2020
Amended claims with annotations
Search/Exam
Jun 10, 2020
Amended description with annotations
Search/Exam
Jun 10, 2020
Claims
Search/Exam
Jun 10, 2020
Description
Search/Exam
Jun 10, 2020
Drawings
Search/Exam
Jun 10, 2020
Drawings
Search/Exam
Jun 10, 2020
May 28, 2020
Amended claims with annotations
Search/Exam
May 28, 2020
Amended description with annotations
Search/Exam
May 28, 2020
Claims
Search/Exam
May 28, 2020
Description
Search/Exam
May 28, 2020
Drawings
Search/Exam
May 28, 2020
Drawings
Search/Exam
May 28, 2020
Jan 22, 2020
Annex to the communication
Search/Exam
Jan 22, 2020
Communication from the Examining Division
Search/Exam
Jan 10, 2020
Examination started
Search/Exam
Jul 17, 2019
May 14, 2019
May 10, 2019
Communication to designated inventor
Search/Exam
May 10, 2019
Communication to designated inventor
Search/Exam
May 7, 2019
Priority search results copy provided by EPO
Search/Exam
Apr 29, 2019
(Electronic) Receipt
Search/Exam
Apr 29, 2019
Apr 29, 2019
Amended claims with annotations
Search/Exam
Apr 29, 2019
Apr 29, 2019
Request for entry into the European phase
Search/Exam
Feb 15, 2019
Information on entry into European phase
Search/Exam
Apr 30, 2018
Apr 12, 2018
Copy of the international search report
Search/Exam
Apr 12, 2018
Published international application - A1
Search/Exam
Nov 8, 2017
ISR: cited documents
PCTISA
Nov 8, 2017
Nov 7, 2017
Nov 7, 2017
Nov 7, 2017
Sep 19, 2017
Sep 18, 2017
Sep 13, 2017
Sep 13, 2017
Sep 13, 2017
Sep 6, 2017
(Electronic) Receipt
PCTRO
Sep 6, 2017
Abstract
PCTRO
Sep 6, 2017
Claims
PCTRO
Sep 6, 2017
Description
PCTRO
Sep 6, 2017
Sep 6, 2017
Drawings
PCTRO