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:
Aug. 19, 2025
Filed:
Jun. 24, 2020
Philip Morris Products S.a., Neuchatel, CH;
Ihar Zinovik, Peseux, CH;
Philip Morris Products S.A., Neuchatel, CH;
Abstract
An aerosol-generating system comprising: a liquid storage portion for holding a liquid aerosol-forming substrate; an atomiser in fluid connection with the liquid storage portion; a conductivity sensor; a power supply; and control electronics. The conductivity sensor comprises at least two electrodes () and is arranged to sense the electrical conductivity of liquid aerosol-forming substrate from the liquid storage portion. The control electronics are configured to: control a supply of power from the power supply to the atomiser for atomising liquid aerosol-forming substrate from the liquid storage portion; and control a supply of power from the power supply to the electrodes () of the conductivity sensor, the supply of power being provided to the conductivity sensor as an alternating voltage. The control electronics are further configured to: receive one or more measurements indicative of the conductivity of the liquid aerosol-forming substrate from the conductivity sensor; and determine the nicotine concentration of the liquid aerosol-forming substrate based on one or more of the measurements from the conductivity sensor.