US Patent 11770877 Portable temperature controlled aromatherapy vaporizers

Disclosed herein are aspects of portable vaporizers and methods to control temperature and operation of same. A printed circuit board in signal communications with at least one temperature sensor controls the power flow to a resistance heater to select the temperature produced by heating elements in the furnace. A rechargeable battery power supply is mounted in a body to supply power the heating element via an application or via direct interface the user communicates with the control system.