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The patent EP2921064 was granted to Joyetech Changzhou Electronics on Jan 23, 2019. The application was filed on Dec 14, 2012 under application number EP12888511A. 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 | Oct 23, 2019 | J A KEMP | ADMISSIBLE |
| HOFFMANN EITLE | Oct 23, 2019 | WEICKMANN & WEICKMANN PARTMBB | ADMISSIBLE |
| KELTIE | Oct 23, 2019 | MOORE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CN201352950Y |
| INTERNATIONAL-SEARCH-REPORT | CN201878765U |
| INTERNATIONAL-SEARCH-REPORT | CN202233002U |
| INTERNATIONAL-SEARCH-REPORT | CN202890465U |
| INTERNATIONAL-SEARCH-REPORT | US6766220 |
| OPPOSITION | CA2641869 |
| OPPOSITION | CN102727969 |
| OPPOSITION | CN201226775Y |
| OPPOSITION | CN201878765U |
| OPPOSITION | CN202364801U |
| OPPOSITION | EP2468116 |
| OPPOSITION | EP2489391 |
| OPPOSITION | KR200454110Y |
| OPPOSITION | KR9013211U |
| OPPOSITION | US2004129793 |
| OPPOSITION | US2006047368 |
| OPPOSITION | US2009320863 |
| OPPOSITION | US2010242974 |
| OPPOSITION | US2011265806 |
| OPPOSITION | US6766220 |
| OPPOSITION | US8212763 |
| OPPOSITION | WO2011137453 |
| OPPOSITION | WO2012085203 |
| OPPOSITION | WO2012120487 |
| OPPOSITION | WO2014075369 |
| SEARCH | CN102727969 |
| SEARCH | US2003154991 |
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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Decision to grant a European patent
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French translation of claims
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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European search opinion
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May 30, 2016
Information on Search Strategy
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Supplementary European search report
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Refund of fees
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Letter accompanying subsequently filed items
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Priority search results
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Priority search results
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Aug 26, 2015
Notification of forthcoming publication
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Communication to designated inventor
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Mar 27, 2015
Information regarding early processing
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Jan 26, 2015
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Jan 26, 2015
Abstract
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Jan 26, 2015
Claims
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Jan 26, 2015
Description
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Letter concerning fees and payments
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Jan 26, 2015
Request for entry into the European phase
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Copy of the international search report
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International publication pamphlet
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