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The patent EP3945910 was granted to Philip Morris on May 31, 2023. The application was filed on Apr 3, 2020 under application number EP20715099A. 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 | Feb 28, 2024 | HARRISON | ADMISSIBLE |
| IMPERIAL TOBACCO | Feb 13, 2024 | MEWBURN ELLIS | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2012164009 |
| INTERNATIONAL-SEARCH-REPORT | CN109512022 |
| INTERNATIONAL-SEARCH-REPORT | EP3039972 |
| INTERNATIONAL-SEARCH-REPORT | KR20180070516 |
| INTERNATIONAL-SEARCH-REPORT | US3860011 |
| INTERNATIONAL-SEARCH-REPORT | WO2014198815 |
| INTERNATIONAL-SEARCH-REPORT | WO2018176346 |
| OPPOSITION | CN109512022 |
| OPPOSITION | EP2910134 |
| OPPOSITION | EP3039972 |
| OPPOSITION | EP3494809 |
| OPPOSITION | EP3586652 |
| OPPOSITION | KR20180070516 |
| OPPOSITION | US3396733 |
| OPPOSITION | US3860011 |
| OPPOSITION | US5020548 |
| OPPOSITION | US5692525 |
| OPPOSITION | WO2013098409 |
| OPPOSITION | WO2014068295 |
| OPPOSITION | WO2014118286 |
| OPPOSITION | WO2014198815 |
| OPPOSITION | WO2015082648 |
| OPPOSITION | WO2015082652 |
| OPPOSITION | WO2015124242 |
| OPPOSITION | WO2016042100 |
| OPPOSITION | WO2016042101 |
| OPPOSITION | WO2017036586 |
| OPPOSITION | WO2017036588 |
| OPPOSITION | WO2018163253 |
| OPPOSITION | WO2018176346 |
| OPPOSITION | WO2018189201 |
| OPPOSITION | WO2019130155 |
| OPPOSITION | WO2020025737 |
| OPPOSITION | WO2020089105 |
| OPPOSITION | WO2021170650 |
| OPPOSITION | WO2021170651 |
| OPPOSITION | WO2021170675 |
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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Oct 30, 2025
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Appeal
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(Electronic) Receipt
Appeal
Aug 27, 2025
Notice of appeal
Appeal
Aug 27, 2025
Notice of appeal
Appeal
Aug 27, 2025
Notice of appeal
Appeal
Aug 27, 2025
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Appeal
Aug 26, 2025
(Electronic) Receipt
Appeal
Aug 26, 2025
Notice of appeal
Appeal
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Decision to grant a European patent
Search/Exam
Mar 6, 2023
(Electronic) Receipt
Search/Exam
Mar 6, 2023
Filing of the translations of the claims
Search/Exam
Mar 6, 2023
French translation of claims
Search/Exam
Mar 6, 2023
German translation of the claims
Search/Exam
Mar 6, 2023
Letter accompanying subsequently filed items
Search/Exam
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Intention to grant (signatures)
Search/Exam
Oct 27, 2022
Text intended for grant (clean copy)
Search/Exam
Oct 27, 2022
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Examination started
Search/Exam
Apr 5, 2022
(Electronic) Receipt
Search/Exam
Apr 5, 2022
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Amended claims with annotations
Search/Exam
Apr 5, 2022
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Amended description with annotations
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Apr 5, 2022
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Search/Exam
Apr 5, 2022
Letter accompanying subsequently filed items
Search/Exam
Feb 7, 2022
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(Electronic) Receipt
Search/Exam
Jan 26, 2022
Letter accompanying subsequently filed items
Search/Exam
Jan 26, 2022
Request for correction of client data
Search/Exam
Jan 12, 2022
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Priority search results copy provided by EPO
Search/Exam
Oct 11, 2021
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Information regarding early processing
Search/Exam
Sep 14, 2021
(Electronic) Receipt
Search/Exam
Sep 14, 2021
Request for entry into the European phase
Search/Exam
Aug 13, 2021
Information on entry into European phase
Search/Exam
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Notification of election of EPO
Search/Exam
Jan 29, 2021
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PCT demand form
PCT2
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Copy of the international search report
Search/Exam
Oct 8, 2020
Published international application - A1
Search/Exam
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(Electronic) Receipt
PCTRO
Apr 3, 2020
Abstract
PCTRO
Apr 3, 2020
Claims
PCTRO
Apr 3, 2020
Description
PCTRO
Apr 3, 2020
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PCTRO
Apr 3, 2020
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