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The patent EP3136885 was granted to British American Tobacco on Oct 1, 2025. The application was filed on Apr 30, 2015 under application number EP15725399A. 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 |
|---|---|---|---|
| MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB | Jul 20, 2021 | MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | WO2014EP72828 |
| EXAMINATION | EP2625975 |
| EXAMINATION | JP2001120250 |
| EXAMINATION | US2013133675 |
| EXAMINATION | US6814786 |
| EXAMINATION | WO2012168699 |
| EXAMINATION | WO2013164705 |
| INTERNATIONAL-SEARCH-REPORT | EP2625974 |
| INTERNATIONAL-SEARCH-REPORT | JP2001120250 |
| INTERNATIONAL-SEARCH-REPORT | US6814786 |
| INTERNATIONAL-SEARCH-REPORT | WO2012168699 |
| INTERNATIONAL-SEARCH-REPORT | WO2013164705 |
| OPPOSITION | EP2625975 |
| OPPOSITION | FR1302759 |
| OPPOSITION | GB981379 |
| OPPOSITION | US2012080042 |
| OPPOSITION | US2013133675 |
| OPPOSITION | US2248259 |
| OPPOSITION | WO0130184 |
| OPPOSITION | WO03042588 |
| OPPOSITION | WO2004086888 |
| OPPOSITION | WO2007031876 |
| OPPOSITION | WO2011084594 |
| OPPOSITION | WO2012022989 |
| OPPOSITION | WO2012079887 |
| OPPOSITION | WO2012123702 |
| OPPOSITION | WO2012168699 |
| OPPOSITION | WO2013120565 |
| OPPOSITION | WO2013164705 |
| OPPOSITION | WO2013190036 |
| OPPOSITION | WO2014118286 |
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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Sep 4, 2025
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Refund of fees
Appeal
Jun 3, 2025
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May 28, 2025
(Electronic) Receipt
Appeal
May 28, 2025
May 28, 2025
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May 28, 2025
Withdrawal of an appeal
Appeal
May 20, 2025
May 15, 2025
(Electronic) Receipt
Appeal
May 15, 2025
May 12, 2025
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Dec 12, 2024
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(Electronic) Receipt
Appeal
May 30, 2023
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(Electronic) Receipt
Appeal
Mar 29, 2023
Mar 29, 2023
Notice of appeal
Appeal
Jan 20, 2023
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OPPO
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Dec 1, 2020
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Decision to grant a European patent
Search/Exam
Sep 18, 2020
Sep 18, 2020
Sep 16, 2020
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Sep 11, 2020
(Electronic) Receipt
Search/Exam
Sep 11, 2020
Letter accompanying subsequently filed items
Search/Exam
Sep 11, 2020
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Sep 8, 2020
(Electronic) Receipt
Search/Exam
Sep 8, 2020
Filing of the translations of the claims
Search/Exam
Sep 8, 2020
French translation of claims
Search/Exam
Sep 8, 2020
German translation of the claims
Search/Exam
Sep 8, 2020
Letter accompanying subsequently filed items
Search/Exam
May 19, 2020
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Intention to grant (signatures)
Search/Exam
May 19, 2020
Text intended for grant (clean copy)
Search/Exam
May 19, 2020
Mar 18, 2020
(Electronic) Receipt
Search/Exam
Mar 18, 2020
Amended claims with annotations
Search/Exam
Mar 18, 2020
Amended description with annotations
Search/Exam
Mar 18, 2020
Claims
Search/Exam
Mar 18, 2020
Description
Search/Exam
Mar 18, 2020
Letter accompanying subsequently filed items
Search/Exam
Mar 18, 2020
Jan 31, 2020
Annex to the communication
Search/Exam
Jan 31, 2020
Communication from the Examining Division
Search/Exam
Oct 10, 2019
(Electronic) Receipt
Search/Exam
Oct 10, 2019
Amended description with annotations
Search/Exam
Oct 10, 2019
Description
Search/Exam
Oct 10, 2019
Letter accompanying subsequently filed items
Search/Exam
Oct 10, 2019
Jun 4, 2019
Annex to the communication
Search/Exam
Jun 4, 2019
Communication from the Examining Division
Search/Exam
May 24, 2019
Examination started
Search/Exam
May 3, 2019
May 2, 2019
Apr 29, 2019
Jul 17, 2017
(Electronic) Receipt
Search/Exam
Jul 17, 2017
Jul 17, 2017
Amended claims with annotations
Search/Exam
Jul 17, 2017
Jul 17, 2017
Amended description with annotations
Search/Exam
Jul 17, 2017
Amendments received before examination
Search/Exam
Jul 17, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 8, 2017
Jan 5, 2017
Dec 7, 2016
Communication to designated inventor
Search/Exam
Nov 30, 2016
(Electronic) Receipt
Search/Exam
Nov 30, 2016
Request for entry into the European phase
Search/Exam
Nov 15, 2016
Sep 9, 2016
Information on entry into European phase
Search/Exam
Dec 30, 2015
Copy of the international search report
Search/Exam
Dec 30, 2015
Nov 23, 2015
Nov 16, 2015
ISR: cited documents
PCTISA
Nov 13, 2015
Nov 13, 2015
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Nov 5, 2015
Published international application - A2
Search/Exam
Aug 19, 2015
May 29, 2015
Abstract
PCTISA
May 29, 2015
Claims
PCTISA
May 29, 2015
Description
PCTISA
May 29, 2015
Drawings
PCTISA