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The patent EP3820244 was granted to Kt&G on Nov 29, 2023. The application was filed on Jul 2, 2019 under application number EP19831491A. 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 |
|---|---|---|---|
| NICOVENTURES | Aug 23, 2024 | D YOUNG | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | KR101267537B |
| INTERNATIONAL-SEARCH-REPORT | KR101570106B |
| INTERNATIONAL-SEARCH-REPORT | KR20160012329 |
| INTERNATIONAL-SEARCH-REPORT | KR20170067171 |
| INTERNATIONAL-SEARCH-REPORT | KR20170108498 |
| INTERNATIONAL-SEARCH-REPORT | WO2014195805 |
| OPPOSITION | CN103996272 |
| OPPOSITION | US2010156624 |
| OPPOSITION | US2015126234 |
| OPPOSITION | US2015181945 |
| OPPOSITION | US2016189523 |
| OPPOSITION | US2016351044 |
| OPPOSITION | US2017092106 |
| OPPOSITION | US2017134898 |
| OPPOSITION | US2017164156 |
| OPPOSITION | US8918272 |
| OPPOSITION | WO2014195805 |
| OPPOSITION | WO2017205692 |
| SEARCH | US2015142387 |
| SEARCH | US2015181945 |
| SEARCH | WO2014195805 |
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.
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Decision to grant a European patent
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(Electronic) Receipt
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Oct 19, 2023
French translation of claims
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Oct 19, 2023
German translation of the claims
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Oct 19, 2023
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Jun 16, 2023
Text intended for grant (clean copy)
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Examination started
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Jun 9, 2022
(Electronic) Receipt
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Amended claims with annotations
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Amended description with annotations
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Amendments received before examination
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Letter accompanying subsequently filed items
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European search opinion
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Nov 12, 2021
Information on Search Strategy
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Nov 12, 2021
Supplementary European search report
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Nov 2, 2021
Search started
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May 10, 2021
Letter which had not been notified
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Apr 14, 2021
Notification of forthcoming publication
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Feb 22, 2021
Letter accompanying subsequently filed items
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Feb 22, 2021
Matter concerning the application
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Matter concerning the application
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Oct 23, 2020
Information regarding early processing
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Oct 13, 2020
(Electronic) Receipt
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Oct 13, 2020
Abstract
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Oct 13, 2020
Claims
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Oct 13, 2020
Description
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Oct 13, 2020
Drawings
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Oct 13, 2020
Request for entry into the European phase
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Sep 24, 2020
Notification of the recording of a change
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Jan 29, 2020
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Copy of the international search report
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International publication pamphlet
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