Patent No. EP3941253 (titled "Smoking Substitute System") was filed by Imperial Tobacco on Mar 13, 2020. The application was issued on Jun 18, 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 | Mar 18, 2026 | MAIWALD |
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
Aug 3, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Jul 31, 2026
Apr 1, 2026
Apr 1, 2026
Mar 23, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Mar 18, 2026
Jul 1, 2025
May 22, 2025
May 8, 2025
May 8, 2025
May 8, 2025
May 8, 2025
May 8, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Feb 17, 2025
Jan 31, 2025
Aug 28, 2023
Aug 23, 2023
Aug 23, 2023
Aug 23, 2023
Aug 23, 2023
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Apr 26, 2022
Jan 5, 2022
Oct 29, 2021
Oct 22, 2021
Oct 11, 2021
Sep 23, 2021
Sep 23, 2021
Aug 6, 2021
Oct 19, 2020
Oct 1, 2020
Oct 1, 2020
Jun 2, 2020
Jun 2, 2020
Jun 2, 2020
Jun 2, 2020
Apr 15, 2020
Apr 10, 2020
Apr 8, 2020
Apr 8, 2020
Mar 18, 2020
Mar 13, 2020
Mar 13, 2020
Mar 13, 2020
Mar 13, 2020
Mar 13, 2020
Mar 13, 2020
Mar 13, 2020