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The patent EP3571944 was granted to Joyetech Changzhou Electronics on Dec 2, 2020. The application was filed on Dec 14, 2012 under application number EP19183716A. 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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| ADAMSON JONES | Sep 2, 2021 | J A KEMP | ADMISSIBLE |
| KELTIE | Sep 2, 2021 | MOORE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | CA2641869 |
| OPPOSITION | CN102727969 |
| OPPOSITION | CN201352950Y |
| OPPOSITION | CN201878765U |
| OPPOSITION | CN202233002U |
| OPPOSITION | CN202233008U |
| OPPOSITION | CN202303455U |
| OPPOSITION | EP2468118 |
| OPPOSITION | KR920004936U |
| OPPOSITION | US2003154991 |
| OPPOSITION | US2004129793 |
| OPPOSITION | US2006047368 |
| OPPOSITION | US2009095287 |
| OPPOSITION | US2009320863 |
| OPPOSITION | US2011265806 |
| OPPOSITION | US5894841 |
| OPPOSITION | US6766220 |
| OPPOSITION | US8212763 |
| OPPOSITION | WO2011137453 |
| OPPOSITION | WO2012026963 |
| OPPOSITION | WO2012027350 |
| OPPOSITION | WO2012085203 |
| OPPOSITION | WO2014075369 |
| SEARCH | CN102727969 |
| SEARCH | CN201352950Y |
| SEARCH | CN201878765U |
| SEARCH | CN202233002U |
| SEARCH | CN202303455U |
| SEARCH | US2003154991 |
| SEARCH | US6766220 |
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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Appeal
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Appeal
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Reply to appeal
Appeal
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Appeal
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Appeal
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Notice of appeal
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Dec 14, 2020
Nov 5, 2020
Decision to grant a European patent
Search/Exam
Oct 22, 2020
(Electronic) Receipt
Search/Exam
Oct 22, 2020
Filing of the translations of the claims
Search/Exam
Oct 22, 2020
French translation of claims
Search/Exam
Oct 22, 2020
German translation of the claims
Search/Exam
Oct 22, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 25, 2020
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Jun 25, 2020
Intention to grant (signatures)
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Jun 25, 2020
Text intended for grant (clean copy)
Search/Exam
Jun 25, 2020
Jun 3, 2020
Examination started
Search/Exam
May 11, 2020
(Electronic) Receipt
Search/Exam
May 11, 2020
May 11, 2020
Amended claims with annotations
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May 11, 2020
Amendments received before examination
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May 11, 2020
Letter accompanying subsequently filed items
Search/Exam
Dec 2, 2019
Oct 30, 2019
Notification of forthcoming publication
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Oct 2, 2019
Refund of fees
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Sep 30, 2019
Sep 30, 2019
European search opinion
Search/Exam
Sep 30, 2019
European search report
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Sep 30, 2019
Information on Search Strategy
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Aug 23, 2019
Communication to designated inventor
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Jul 15, 2019
Notice on debiting of fees
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Jul 1, 2019
Abstract
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Jul 1, 2019
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Claims
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Jul 1, 2019
Description
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Jul 1, 2019
Designation of inventor
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Jul 1, 2019
Drawings
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Jul 1, 2019
Request for grant of a European patent
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Jun 12, 2014