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The patent EP3660070 was granted to Kingfa SCI & Tech on Aug 11, 2021. The application was originally filed on Jun 26, 2018 under application number EP18870205A. 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 |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN102336896 |
| INTERNATIONAL-SEARCH-REPORT | CN102639594 |
| INTERNATIONAL-SEARCH-REPORT | CN103189414 |
| INTERNATIONAL-SEARCH-REPORT | CN104497282 |
| INTERNATIONAL-SEARCH-REPORT | CN107257814 |
| INTERNATIONAL-SEARCH-REPORT | CN107955140 |
| OPPOSITION | EP1863860 |
| OPPOSITION | EP2632970 |
| OPPOSITION | WO2014057001 |
| OPPOSITION | WO2016108768 |
| SEARCH | US2015267037 |
| SEARCH | WO2016108768 |
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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Means of redress
OPPO
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Aug 24, 2021
Jul 15, 2021
Decision to grant a European patent
Search/Exam
Jun 29, 2021
(Electronic) Receipt
Search/Exam
Jun 29, 2021
French translation of claims
Search/Exam
Jun 29, 2021
German translation of the claims
Search/Exam
Jun 29, 2021
Letter accompanying subsequently filed items
Search/Exam
Mar 9, 2021
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Mar 9, 2021
Text intended for grant (clean copy)
Search/Exam
Mar 9, 2021
Mar 8, 2021
Intention to grant (signatures)
Search/Exam
Mar 1, 2021
Feb 23, 2021
Feb 15, 2021
Examination started
Search/Exam
Oct 16, 2020
(Electronic) Receipt
Search/Exam
Oct 16, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 16, 2020
Priority search results
Search/Exam
Oct 16, 2020
Oct 2, 2020
Sep 23, 2020
(Electronic) Receipt
Search/Exam
Sep 23, 2020
Sep 23, 2020
Amended claims with annotations
Search/Exam
Sep 23, 2020
Sep 23, 2020
Amended description with annotations
Search/Exam
Sep 23, 2020
Amendments received before examination
Search/Exam
Sep 23, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 19, 2020
Jun 2, 2020
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European search opinion
Search/Exam
Jun 2, 2020
Information on Search Strategy
Search/Exam
Jun 2, 2020
Supplementary European search report
Search/Exam
May 15, 2020
Search started
Search/Exam
May 11, 2020
May 11, 2020
May 7, 2020
Notification of forthcoming publication
Search/Exam
May 7, 2020
Mar 12, 2020
Mar 12, 2020
Enquiry with the International Bureau
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 11, 2020
Communication to designated inventor
Search/Exam
Mar 6, 2020
Information on entry into European phase
Search/Exam
Feb 28, 2020
(Electronic) Receipt
Search/Exam
Feb 28, 2020
Abstract
Search/Exam
Feb 28, 2020
Feb 28, 2020
Claims
Search/Exam
Feb 28, 2020
Description
Search/Exam
Feb 28, 2020
Modified abstract
Search/Exam
Feb 28, 2020
Request for entry into the European phase
Search/Exam
Feb 25, 2020
Notification of the recording of a change
Search/Exam
Feb 25, 2020
Notification of the recording of a change
Search/Exam
Feb 25, 2020
Notification of the recording of a change
Search/Exam
May 21, 2019
May 2, 2019
Copy of the international search report
Search/Exam
May 2, 2019
May 2, 2019
International publication pamphlet
Search/Exam