Aerosol-Generating System Having A Ventilation Chamber

Patent No. EP4081056 (titled "Aerosol-Generating System Having A Ventilation Chamber") was filed by Philip Morris on Dec 21, 2020. The application was issued on Aug 7, 2024.

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
JAPAN TOBACCO	May 7, 2025	BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWALTE RECHTSANWALTE

Dossier Documents

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 25, 2025
Brief communication - Opposition proceedings
Sep 22, 2025
(Electronic) Receipt
Sep 22, 2025
Auxiliary request during Opposition procedure
Sep 22, 2025
Auxiliary request during Opposition procedure
Sep 22, 2025
Auxiliary request during Opposition procedure
Sep 22, 2025
Auxiliary request during Opposition procedure - 01
Sep 22, 2025
Auxiliary request during Opposition procedure - 02
Sep 22, 2025
Auxiliary request during Opposition procedure - 03
Sep 22, 2025
Letter accompanying subsequently filed items
Sep 22, 2025
Reply of the patent proprietor to the notice(s) of opposition
Jun 30, 2025
Brief communication - Opposition proceedings
Jun 27, 2025
Communication confirming withdrawal from representation
Jun 27, 2025
Communication of amended entries concerning the representative
Jun 3, 2025
(Electronic) Receipt
Jun 3, 2025
Letter accompanying subsequently filed items
Jun 3, 2025
Submission concerning change of proprietor's representative
May 22, 2025
Communication of a notice of opposition and request to file observations
May 22, 2025
Notice of further oppositions to opponent(s)
May 13, 2025
Communication of a notice of opposition - first information to patent proprietor
May 7, 2025
(Electronic) Receipt
May 7, 2025
Citation in opposition procedure - 001
May 7, 2025
Citation in opposition procedure - 002
May 7, 2025
Citation in opposition procedure - 003
May 7, 2025
Citation in opposition procedure - 004
May 7, 2025
Citation in opposition procedure - 005
May 7, 2025
Consolidated list of cited opposition documents
May 7, 2025
Notice of opposition
May 7, 2025
Notice of opposition
Aug 21, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Jul 29, 2024
Communication of amended entries concerning the representative
Jul 11, 2024
Decision to grant a European patent
Jun 25, 2024
(Electronic) Receipt
Jun 25, 2024
Filing of the translations of the claims
Jun 25, 2024
French translation of claims
Jun 25, 2024
German translation of the claims
Jun 25, 2024
Letter accompanying subsequently filed items
Mar 5, 2024
Annex to the communication about intention to grant a European patent
Mar 5, 2024
Bibliographic data of the European patent application
Mar 5, 2024
Communication about intention to grant a European patent
Mar 5, 2024
Intention to grant (signatures)
Mar 5, 2024
Text intended for grant (clean copy)
Mar 5, 2024
Text intended for grant (version for approval)
Feb 20, 2024
(Electronic) Receipt
Feb 20, 2024
Amended description with annotations
Feb 20, 2024
Description
Feb 20, 2024
Letter accompanying subsequently filed items
Feb 20, 2024
Request for correction/amendment of the text proposed for grant sent from 01.04.2012
Jan 31, 2024
Annex to the communication about intention to grant a European patent
Jan 31, 2024
Bibliographic data of the European patent application
Jan 31, 2024
Communication about intention to grant a European patent
Jan 31, 2024
Intention to grant (signatures)
Jan 31, 2024
Text intended for grant (clean copy)
Jan 31, 2024
Text intended for grant (version for approval)
Nov 13, 2023
Grant of extension of time limit (examination procedure)
Nov 10, 2023
(Electronic) Receipt
Nov 10, 2023
Amended claims with annotations
Nov 10, 2023
Amended description with annotations
Nov 10, 2023
Claims
Nov 10, 2023
Description
Nov 10, 2023
Drawings
Nov 10, 2023
Letter accompanying subsequently filed items
Nov 10, 2023
Reply to communication from the Examining Division
Nov 8, 2023
(Electronic) Receipt
Nov 8, 2023
Letter accompanying subsequently filed items
Nov 8, 2023
Request for extension of time limit to communication from the Examining Division
Jun 28, 2023
Annex to the communication
Jun 28, 2023
Communication from the Examining Division
Jun 15, 2023
Examination started
Apr 6, 2023
Acknowledgement of receipt of third party observations
Apr 6, 2023
Transmittal of third party observations to applicant
Mar 31, 2023
(Electronic) Receipt
Mar 31, 2023
Letter accompanying subsequently filed items
Mar 31, 2023
Observations by third parties
Mar 31, 2023
Patent document filed by a Third party
Jan 10, 2023
(Electronic) Receipt
Jan 10, 2023
Amended claims filed after receipt of (European) search report
Jan 10, 2023
Amended claims with annotations
Jan 10, 2023
Amended description filed after receipt of (European) search report
Jan 10, 2023
Amended description with annotations
Jan 10, 2023
Amendments received before examination
Jan 10, 2023
Letter accompanying subsequently filed items
Oct 6, 2022
Notification on forthcoming publication of bibliographic data
Aug 2, 2022
Communication regarding comments on written opinion/amendment of application/payment of claims fee
Jul 26, 2022
Priority search results copy provided by EPO
Jun 27, 2022
Annexes to the international preliminary examination report
Jun 27, 2022
Copy of the international preliminary examination report
Jun 21, 2022
Information regarding early processing
Jun 6, 2022
(Electronic) Receipt
Jun 6, 2022
Request for entry into the European phase
May 9, 2022
Information on entry into European phase
Mar 22, 2022
Annex to International preliminary examination report
Mar 22, 2022
International preliminary examination report
Mar 22, 2022
International preliminary examination report - free text sheet
Mar 22, 2022
International preliminary examination report - points I-VIII
Mar 22, 2022
Transmittal of International Preliminary Examination Report
Jan 25, 2022
(Electronic) Receipt
Jan 25, 2022
Letter regarding PCTII procedure
Jan 25, 2022
PCT(IPEA): Amended sheet - claims
Jan 25, 2022
Reply to communication PCT/IPEA/408
Nov 25, 2021
Written opinion
Nov 25, 2021
Written opinion - free text sheet
Nov 25, 2021
Written opinion - points I-VIII
Nov 18, 2021
Notification of election of EPO
Nov 6, 2021
Amendments of documents (Article 19 PCT) (without attachments)
Oct 29, 2021
Notification of receipt of demand
Oct 25, 2021
(Electronic) Receipt
Oct 25, 2021
PCT demand form
Oct 25, 2021
PCT(IPEA): Amended sheet - claims
Oct 25, 2021
PCT(IPEA): Amended sheet - claims
Oct 25, 2021
Payment of fees and costs
Oct 25, 2021
Reply to International Search Opinion
Jul 19, 2021
Priority document (electronically transmitted)
Jul 1, 2021
Copy of the international search report
Jul 1, 2021
Published international application - A1
Feb 17, 2021
(Electronic) Receipt
Feb 17, 2021
Incoming letter related to PCT RO
Feb 17, 2021
Incoming letter related to PCT RO
Feb 17, 2021
Submission concerning representation
Jan 19, 2021
Notification of the international application number and of the international filing date
Dec 21, 2020
(Electronic) Receipt
Dec 21, 2020
Abstract
Dec 21, 2020
Claims
Dec 21, 2020
Description
Dec 21, 2020
Document concerning fees and payments
Dec 21, 2020
Drawings
Dec 21, 2020
Electronic request for grant of an International application
Dec 21, 2020
Incoming communication concerning PCT Direct

EP4081056

PHILIP MORRIS

Application Number: EP20833895A
Filing Date: Dec 21, 2020
Status: Granted And Under Opposition; Jul 5, 2024
Publication Date: Aug 7, 2024
External Links: Slate, Register , Google Patents

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Aerosol-Generating System Having A Ventilation Chamber

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Dossier Documents

EP4081056