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The patent EP3829351 was granted to Philip Morris on May 7, 2025. The application was filed on Dec 4, 2019 under application number EP19812807A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| JAPAN TOBACCO | Dec 22, 2022 | BANDPAY & GREUTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | CA3010850 |
| INTERNATIONAL-SEARCH-REPORT | CN103653257 |
| INTERNATIONAL-SEARCH-REPORT | EP3398460 |
| INTERNATIONAL-SEARCH-REPORT | US5865185 |
| INTERNATIONAL-SEARCH-REPORT | US6129087 |
| INTERNATIONAL-SEARCH-REPORT | WO2013120849 |
| OPPOSITION | EP2549015 |
| OPPOSITION | EP2550879 |
| OPPOSITION | EP3021692 |
| OPPOSITION | EP3160271 |
| OPPOSITION | GB2534211 |
| OPPOSITION | JPH0947271 |
| OPPOSITION | KR100844445B |
| OPPOSITION | US2005066986 |
| OPPOSITION | US2012042885 |
| OPPOSITION | US2014137882 |
| OPPOSITION | US2015083150 |
| OPPOSITION | US2016143355 |
| OPPOSITION | US2017000188 |
| OPPOSITION | US3840024 |
| OPPOSITION | US5388594 |
| OPPOSITION | WO0028843 |
| OPPOSITION | WO2009022232 |
| OPPOSITION | WO2011101164 |
| OPPOSITION | WO2011117750 |
| OPPOSITION | WO2013120849 |
| OPPOSITION | WO2013120855 |
| OPPOSITION | WO2015197863 |
| OPPOSITION | WO9632854 |
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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Apr 10, 2025
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Refund of fees
Appeal
Jan 13, 2025
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Dec 11, 2024
(Electronic) Receipt
Appeal
Dec 11, 2024
Dec 11, 2024
Withdrawal of an appeal
Appeal
Oct 25, 2024
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Oct 16, 2024
(Electronic) Receipt
Appeal
Oct 16, 2024
Notice of appeal
Appeal
Oct 16, 2024
Notice of appeal
Appeal
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Search/Exam
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Decision to grant a European patent
Search/Exam
Feb 10, 2022
(Electronic) Receipt
Search/Exam
Feb 10, 2022
Filing of the translations of the claims
Search/Exam
Feb 10, 2022
French translation of claims
Search/Exam
Feb 10, 2022
German translation of the claims
Search/Exam
Feb 10, 2022
Letter accompanying subsequently filed items
Search/Exam
Oct 4, 2021
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Intention to grant (signatures)
Search/Exam
Oct 4, 2021
Text intended for grant (clean copy)
Search/Exam
Oct 4, 2021
Jun 25, 2021
(Electronic) Receipt
Search/Exam
Jun 25, 2021
Amended claims with annotations
Search/Exam
Jun 25, 2021
Amended description with annotations
Search/Exam
Jun 25, 2021
Claims
Search/Exam
Jun 25, 2021
Description
Search/Exam
Jun 25, 2021
Letter accompanying subsequently filed items
Search/Exam
Jun 25, 2021
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Annex to the communication
Search/Exam
Jun 2, 2021
Communication from the Examining Division
Search/Exam
May 25, 2021
Examination started
Search/Exam
May 12, 2021
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Communication to designated inventor
Search/Exam
Mar 12, 2021
Communication to designated inventor
Search/Exam
Mar 12, 2021
Mar 9, 2021
Priority search results copy provided by EPO
Search/Exam
Mar 5, 2021
(Electronic) Receipt
Search/Exam
Mar 5, 2021
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Request for entry into the European phase
Search/Exam
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Notification of election of EPO
Search/Exam
Oct 27, 2020
Written opinion
PCT2
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PCT demand form
PCT2
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Copy of the international search report
Search/Exam
Jun 11, 2020
Published international application - A1
Search/Exam
Dec 11, 2019
Dec 4, 2019
(Electronic) Receipt
PCTRO
Dec 4, 2019
Abstract
PCTRO
Dec 4, 2019
Claims
PCTRO
Dec 4, 2019
Description
PCTRO
Dec 4, 2019
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Drawings
PCTRO
Dec 4, 2019