Issued Patents All Time
Showing 26–50 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5194854 | Multicolor logic device | — | 1993-03-16 |
| 5122733 | Variable color digital multimeter | — | 1992-06-16 |
| 5057768 | Measuring device with variable color display | — | 1991-10-15 |
| 5003298 | Variable color digital display for emphasizing position of decimal point | — | 1991-03-26 |
| 5003247 | Measuring device with variable color background | — | 1991-03-26 |
| 4965561 | Continuously variable color optical device | — | 1990-10-23 |
| 4934852 | Variable color display typewriter | — | 1990-06-19 |
| 4868496 | Variable color comparison oscilloscope | — | 1989-09-19 |
| 4845745 | Display telephone with transducer | — | 1989-07-04 |
| 4845481 | Continuously variable color display device | — | 1989-07-04 |
| 4831326 | Digital voltmeter with variable color background | — | 1989-05-16 |
| 4824269 | Variable color display typewriter | — | 1989-04-25 |
| 4812744 | Variable color analog voltmeter | — | 1989-03-14 |
| 4810937 | Multicolor optical device | — | 1989-03-07 |
| 4804890 | Variable color complementary display device | — | 1989-02-14 |
| 4797651 | Multicolor comparator of digital signals | — | 1989-01-10 |
| 4794383 | Variable color digital multimeter | — | 1988-12-27 |
| 4791667 | First dialed digit detector and comparator | — | 1988-12-13 |
| 4785432 | Digital display timepiece | — | 1988-11-15 |
| 4777359 | Position indicator with light emitter and two light sensors | — | 1988-10-11 |
| 4775335 | Electrical connector | — | 1988-10-04 |
| 4771274 | Variable color digital display device | — | 1988-09-13 |
| 4754202 | Multicolor comparison display | — | 1988-06-28 |
| 4734619 | Display device with variable color background | — | 1988-03-29 |
| 4726059 | Variable color display telephone | — | 1988-02-16 |