Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5561351 | Dimmer for electrodeless discharge lamp | Nickolas G. Vrionis, Roger Siao, James W. Pfeiffer, Derek Bray, Larry A. Lincoln | 1996-10-01 |
| 5198644 | System for display of prices and related method | James W. Pfeiffer, Larry A. Lincoln, Robert F. Garry, Jr., Kent Fritz | 1993-03-30 |
| 5060394 | Measuring apparatus with readout display | Larry A. Lincoln, Nicholas Vrionis, James W. Pfeiffer, Robert A. Wilk, John D. Scheff | 1991-10-29 |
| 4755792 | Security control system | Blazo A. Mitasev | 1988-07-05 |
| 4588926 | Anti-flicker circuit for automatic turn-on of nightlight | — | 1986-05-13 |
| 4575659 | Sensor timer for lamps | James W. Pfeiffer, Thomas E. Corder | 1986-03-11 |
| 4521843 | Programmable wall switch for controlling lighting times and loads | James W. Pfeiffer, Thomas E. Corder | 1985-06-04 |