Patent No. EP3679814 (titled "Aerosol Generation Device") was filed by Kt&G on Jun 15, 2018. The application was issued on May 7, 2025.

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 |
|---|---|---|
| PHILIP MORRIS | Feb 9, 2026 | DREISS PATENTANWALTE PARTG MBB |
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
Get instant alerts for new documents
Jun 26, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Jun 23, 2026
Feb 24, 2026
Feb 24, 2026
Feb 13, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
Feb 9, 2026
May 20, 2025
Apr 10, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Apr 2, 2025
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Dec 5, 2024
Nov 15, 2024
Nov 11, 2024
Oct 31, 2024
Oct 31, 2024
Oct 31, 2024
Feb 12, 2024
Jan 25, 2024
Jan 25, 2024
Jan 25, 2024
Jan 28, 2022
Jan 28, 2022
Jan 28, 2022
Jan 28, 2022
Jan 28, 2022
Jan 28, 2022
Jan 28, 2022
Jul 20, 2021
Jul 1, 2021
Jul 1, 2021
Jul 1, 2021
Jul 1, 2021
Jun 8, 2021
Jun 17, 2020
Apr 16, 2020
Apr 14, 2020
Apr 14, 2020
Apr 14, 2020
Mar 26, 2020
Mar 26, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Mar 20, 2020
Jan 17, 2020
Oct 29, 2019
Apr 2, 2019
Apr 2, 2019
Mar 14, 2019
Mar 14, 2019
Mar 14, 2019