US Patent Issued to Philip Morris Products on Oct. 6 for "Air pressure measurement to detect an obstruction in an airflow path" (Swiss, German Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,751,496, issued on Oct. 6, was assigned to Philip Morris Products S.A. (Neuchatel, Switzerland).

"Air pressure measurement to detect an obstruction in an airflow path" was invented by Ricardo Cali (Mannheim, Germany) and Wanjiang Han (La Tene, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of detecting the presence of an obstruction in an airflow path of an aerosol-generating system. The system (100) comprises a heater assembly (202) for heating an aerosol-forming substrate (210), a power supply (302), an airflow path defined between an air inlet (218) and an air outlet (306) and passing through the heater assembly (202), and at leas...