ALEXANDRIA, Va., March 12 -- United States Patent no. 12,245,640, issued on March 11, was assigned to OLIG AG (Lucerne, Switzerland).

"Smoke-free cigarette" was invented by Stefan Weber (Karlsruhe, Germany) and Petra Werner (Schirgiswalde-Kirschau, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a smoke-free cigarette comprising a heat source disposed in a container, a reservoir containing nicotine and/or one or mote flavouring agents, and a trigger mechanism for the heat source. According to the claimed invention, the cigarette has an outer shell defining a space in which the heat source and the reservoir are disposed, the outer shell and/or the wall of the container ...