Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D777313 | Blower housing | — | 2017-01-24 |
| 6731082 | DC motor constant speed PWM control | — | 2004-05-04 |
| 6664750 | D.C. motor bridge coil driver | — | 2003-12-16 |
| 6160956 | Ceiling fan with heating/lighting assembly | — | 2000-12-12 |
| D423661 | Radiator cover | — | 2000-04-25 |
| D404123 | Ceiling fan heater | — | 1999-01-12 |
| 5668920 | Ceiling fan with attachable heater housing having an additional fan therein | — | 1997-09-16 |
| D381074 | Ceiling fan heater | — | 1997-07-15 |
| D358873 | Portable forced-air electric heater | — | 1995-05-30 |
| 5259062 | Air treatment apparatus utilizing interchangeable cartridges | — | 1993-11-02 |
| 5133042 | Air treatment apparatus utilizing intercangeable cartidges | — | 1992-07-21 |
| D327315 | Air treatment unit or similar article | — | 1992-06-23 |
| 4968927 | AC power control | — | 1990-11-06 |
| 4800330 | AC power control | — | 1989-01-24 |
| 4713721 | Lighting fixture overload protector | — | 1987-12-15 |
| 4703153 | Electric heater employing semiconductor heating elements | — | 1987-10-27 |