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The patent EP3693057 was granted to Zoll Medical on Oct 12, 2022. The application was filed on Nov 21, 2016 under application number EP20166728A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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 |
|---|---|---|---|
| BOEHMERT & BOEHMERT ANWALTSPARTNERSCHAFT MBB | Jul 11, 2023 | LIESEGANG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2012112903 |
| DESCRIPTION | US2013325096 |
| DESCRIPTION | US2015005588 |
| DESCRIPTION | US2015039053 |
| DESCRIPTION | US6253099 |
| DESCRIPTION | US6280461 |
| DESCRIPTION | US7974689 |
| DESCRIPTION | US8369944 |
| DESCRIPTION | US8600486 |
| DESCRIPTION | US8706215 |
| DESCRIPTION | US8904214 |
| DESCRIPTION | US8909335 |
| DESCRIPTION | US9008801 |
| DESCRIPTION | US9135398 |
| EXAMINATION | US2007089800 |
| OPPOSITION | US2003004547 |
| OPPOSITION | US2007166503 |
| OPPOSITION | US2008287770 |
| OPPOSITION | US2009306730 |
| OPPOSITION | US2012158075 |
| OPPOSITION | US2015217121 |
| OPPOSITION | US2015320994 |
| OPPOSITION | US4928690 |
| OPPOSITION | US5078134 |
| OPPOSITION | US5944669 |
| OPPOSITION | US6065154 |
| OPPOSITION | WO2011146448 |
| OPPOSITION | WO2015127466 |
| SEARCH | EP0948972 |
| SEARCH | EP2433561 |
| SEARCH | US2012158075 |
| SEARCH | US2013325078 |
| SEARCH | US2015039053 |
| SEARCH | WO2009153730 |
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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Sep 24, 2025
Aug 20, 2025
Aug 14, 2025
(Electronic) Receipt
Appeal
Aug 14, 2025
Aug 14, 2025
Aug 14, 2025
Aug 14, 2025
Reply to appeal
Appeal
Apr 14, 2025
Apr 9, 2025
(Electronic) Receipt
Appeal
Apr 9, 2025
Apr 9, 2025
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Feb 13, 2025
Feb 13, 2025
Feb 5, 2025
(Electronic) Receipt
Appeal
Feb 5, 2025
Feb 5, 2025
Notice of appeal
Appeal
Dec 10, 2024
Dec 10, 2024
Dec 10, 2024
Dec 10, 2024
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Means of redress
OPPO
Dec 10, 2024
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Authorisation
OPPO
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Dec 20, 2022
Document concerning representation
Search/Exam
Oct 25, 2022
Sep 15, 2022
Decision to grant a European patent
Search/Exam
Sep 2, 2022
(Electronic) Receipt
Search/Exam
Sep 2, 2022
Filing of the translations of the claims
Search/Exam
Sep 2, 2022
French translation of claims
Search/Exam
Sep 2, 2022
German translation of the claims
Search/Exam
May 3, 2022
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Intention to grant (signatures)
Search/Exam
May 3, 2022
Text intended for grant (clean copy)
Search/Exam
May 3, 2022
Apr 1, 2022
Examination started
Search/Exam
Feb 9, 2021
(Electronic) Receipt
Search/Exam
Feb 9, 2021
Feb 9, 2021
Amended claims with annotations
Search/Exam
Feb 9, 2021
Feb 9, 2021
Amended description with annotations
Search/Exam
Feb 9, 2021
Amendments received before examination
Search/Exam
Feb 9, 2021
Letter accompanying subsequently filed items
Search/Exam
Aug 17, 2020
Jul 15, 2020
Notification of forthcoming publication
Search/Exam
Jul 10, 2020
Communication to designated inventor
Search/Exam
Jul 3, 2020
(Electronic) Receipt
Search/Exam
Jul 3, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 3, 2020
Letter concerning the inventor
Search/Exam
Jul 2, 2020
Jun 26, 2020
Letter which had not been notified
Search/Exam
Jun 22, 2020
Refund of fees
Search/Exam
Jun 22, 2020
Refund of fees
Search/Exam
Jun 15, 2020
Jun 15, 2020
European search opinion
Search/Exam
Jun 15, 2020
European search report
Search/Exam
Jun 15, 2020
Information on Search Strategy
Search/Exam
Jun 3, 2020
Search started
Search/Exam
May 26, 2020
Communication to designated inventor
Search/Exam
May 26, 2020
Communication to designated inventor
Search/Exam
May 26, 2020
Communication to designated inventor
Search/Exam
May 26, 2020
Communication to designated inventor
Search/Exam
May 26, 2020
Communication to designated inventor
Search/Exam
Mar 30, 2020
Abstract
Search/Exam
Mar 30, 2020
Mar 30, 2020
Amended claims with annotations
Search/Exam
Mar 30, 2020
Claims
Search/Exam
Mar 30, 2020
Description
Search/Exam
Mar 30, 2020
Designation of inventor
Search/Exam
Mar 30, 2020
Drawings
Search/Exam
Mar 30, 2020
Matter concerning the application
Search/Exam
Mar 30, 2020
Request for grant of a European patent
Search/Exam
Jun 19, 2017