The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 2025
Filed:
Dec. 13, 2021
Imperial Tobacco Limited;
Oliver Talbot, Liverpool, GB;
Daniel Fard, Liverpool, GB;
Kaikai Liu, Liverpool, GB;
Daniel Harden, San Jose, CA (US);
Britt Jensen, San Jose, CA (US);
Brian Leach, San Jose, CA (US);
Abstract
A system for managing a smoking substitute device, the system comprising; a smoking substitute device comprising; a control unit; a memory configured to store firmware for operating the smoking substitute device and a device-specific encryption key; and a communications interface; and an application server configured to communicate to the smoking substitute device a firmware update message that is encrypted with the device-specific encryption key, wherein the smoking substitute device is configured to obtain an encrypted firmware image, wherein the firmware update message includes a firmware key for decrypting the encrypted firmware image, and wherein the smoking substitute device is configured to use the device-specific encryption key to decrypt the firmware update message, to obtain the firmware key for decrypting the encrypted firmware image.