Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6864659 | Variable speed controller for air moving applications using an AC induction motor | James W. Ratz, Paul E. Sigafus, Larry Lutton | 2005-03-08 |
| 6329783 | Apparatus for continuously variable speed electric motor applications | Ronald L. Eichorn | 2001-12-11 |
| 6329785 | Pulse width modulated controlled induction motor | Alan H. Starkie | 2001-12-11 |
| 6124679 | Discharge lamps and methods for making discharge lamps | — | 2000-09-26 |
| 5905344 | Discharge lamps and methods for making discharge lamps | — | 1999-05-18 |
| 5581157 | Discharge lamps and methods for making discharge lamps | — | 1996-12-03 |
| 5561351 | Dimmer for electrodeless discharge lamp | Roger Siao, Donald E. Pezzolo, James W. Pfeiffer, Derek Bray, Larry A. Lincoln | 1996-10-01 |
| 5397966 | Radio frequency interference reduction arrangements for electrodeless discharge lamps | Roger Siao | 1995-03-14 |