Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961204 | Fluorescent lamp with globe activated dimmer switch | Mark E. Martich, John M. Ossenmacher, Stephen C. McLeod | 1999-10-05 |
| 5744913 | Fluorescent lamp apparatus with integral dimming control | Mark E. Martich, John M. Ossenmacher | 1998-04-28 |
| 5596247 | Compact dimmable fluorescent lamps with central dimming ring | Mark E. Martich, John M. Ossenmacher, Stephen C. McLeod | 1997-01-21 |
| 5001425 | Ferromagnetic object detector with comparison of signal maximums from a pair of detection coils | Wayne M. Spani | 1991-03-19 |
| 4859925 | Power transmission systems and means for control thereof | — | 1989-08-22 |
| 4700123 | Power distribution systems and means for control thereof | — | 1987-10-13 |
| 4683472 | Signal reading system such as for remote reading of meters | — | 1987-07-28 |
| 4606231 | Strain gauge measuring system | — | 1986-08-19 |
| 4272712 | Phase locked loop control system | Leopold Bric | 1981-06-09 |
| 4271384 | Synchronous motor drive | Leopold Bric | 1981-06-02 |
| 4258276 | Switching circuit for connecting an AC source to a load | — | 1981-03-24 |