Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274849 | Radiant electric heater | — | 2001-08-14 |
| 5800634 | Method of manufacturing an electrical resistance heating means | Joseph A. McWilliams | 1998-09-01 |
| 5477605 | Method of manufacturing a radiant electric heater | Joseph A. McWilliams | 1995-12-26 |
| 5463919 | Apparatus for cutting wound coils | Joseph A. McWilliams | 1995-11-07 |
| 5301529 | Coil winding method and apparatus | Joseph A. McWilliams | 1994-04-12 |
| 5277046 | Coil winding method and apparatus for dampening vibrations | Joseph A. McWilliams | 1994-01-11 |