Single-wire arc spray apparatus and methods of using same Application US-6610959-B2 United States of America 26 Aug 2003
Tubular heater for use in an electrical smoking article Application US-5665262-A United States of America 09 Sep 1997
Interdigitated cylindrical heater for use in an electrical smoking article Application US-5530225-A United States of America 25 Jun 1996