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The patent EP3685809 was granted to Novoluto on Oct 1, 2025. The application was filed on Jan 24, 2019 under application number EP19153494A. 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 |
|---|---|---|---|
| EIS | Feb 28, 2022 | EISENFUHR SPEISER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CN2153351Y |
| OPPOSITION | DE102013110501 |
| OPPOSITION | DE102015103694 |
| OPPOSITION | DE102016105019 |
| OPPOSITION | DE102016118911 |
| OPPOSITION | DE1703184 |
| OPPOSITION | DE202007016874U |
| OPPOSITION | DE202012005414U |
| OPPOSITION | DE202016008412U |
| OPPOSITION | DE29809828U |
| OPPOSITION | DE4341790 |
| OPPOSITION | DE856788 |
| OPPOSITION | FR2746639 |
| OPPOSITION | US1042058 |
| OPPOSITION | US2015105609 |
| OPPOSITION | US2112646 |
| OPPOSITION | US5647837 |
| OPPOSITION | WO2012062256 |
| OPPOSITION | WO2013178223 |
| SEARCH | DE202015005041U |
| SEARCH | US2015105609 |
| SEARCH | US5647837 |
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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Search/Exam
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Reply to appeal
Appeal
Nov 7, 2023
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(Electronic) Receipt
Appeal
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Appeal
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Jun 9, 2021
Apr 30, 2021
Decision to grant a European patent
Search/Exam
Apr 19, 2021
(Electronic) Receipt
Search/Exam
Apr 19, 2021
English translation of the claims
Search/Exam
Apr 19, 2021
Filing of the translations of the claims
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Apr 19, 2021
French translation of claims
Search/Exam
Apr 19, 2021
Letter accompanying subsequently filed items
Search/Exam
Jan 18, 2021
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Intention to grant (signatures)
Search/Exam
Jan 18, 2021
Text intended for grant (clean copy)
Search/Exam
Jan 18, 2021
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Annex to the communication
Search/Exam
Dec 18, 2020
Consultation by telephone/in person
Search/Exam
Dec 18, 2020
Oct 1, 2020
(Electronic) Receipt
Search/Exam
Oct 1, 2020
Amended claims with annotations
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Oct 1, 2020
Amended description with annotations
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Oct 1, 2020
Claims
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Oct 1, 2020
Description
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Oct 1, 2020
Letter accompanying subsequently filed items
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Oct 1, 2020
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Notification of forthcoming publication
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Jun 4, 2020
Annex to the communication
Search/Exam
Jun 4, 2020
Communication from the Examining Division
Search/Exam
May 26, 2020
Examination started
Search/Exam
Feb 21, 2020
(Electronic) Receipt
Search/Exam
Feb 21, 2020
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Amended description with annotations
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Feb 21, 2020
Amendments received before examination
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Feb 21, 2020
Letter accompanying subsequently filed items
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Feb 21, 2020
Written request for examination
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Sep 17, 2019
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European search opinion
Search/Exam
Sep 17, 2019
European search report
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Sep 17, 2019
Information on Search Strategy
Search/Exam
Jul 17, 2019
Jul 15, 2019
Search started
Search/Exam
Jul 12, 2019
Letter which had not been notified
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Jun 7, 2019
Communication to designated inventor
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Jun 7, 2019
Communication to designated inventor
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May 29, 2019
(Electronic) Receipt
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May 29, 2019
Designation of inventor
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May 29, 2019
Letter accompanying subsequently filed items
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May 29, 2019
Letter concerning the inventor
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Feb 15, 2019
Deficiency in designation of inventor
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Jan 24, 2019
Abstract
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Claims
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Description
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Jan 24, 2019
Request for grant of a European patent
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