Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4751636 | Memory management method and apparatus for initializing and/or clearing R/W storage areas | — | 1988-06-14 |
| 4617662 | Vital message system with unique function identification | John H. Auer, Jr., Leslie C. Stewart | 1986-10-14 |
| 4563762 | Vital communication system for transmitting multiple messages | — | 1986-01-07 |
| 4553200 | Modular output driver for vital processor systems | — | 1985-11-12 |
| 4495578 | Microprocessor based over/under speed governor | David Rutherford | 1985-01-22 |
| 4485435 | Memory management method and apparatus for initializing and/or clearing R/W storage areas | — | 1984-11-27 |
| 4472789 | Vital timer | — | 1984-09-18 |
| 4471486 | Vital communication system for transmitting multiple messages | — | 1984-09-11 |
| 4387306 | Vital contact checking circuit | — | 1983-06-07 |
| 4368534 | Keyboard controlled vital digital communication system | — | 1983-01-11 |
| 4365298 | Speed control systems for governing the speed of a vehicle | David Rutherford | 1982-12-21 |
| 4365164 | Vital contact isolation circuit | — | 1982-12-21 |
| RE30986 | Vital relay driver having controlled response time | — | 1982-06-29 |
| 4320880 | Electronic track current switching relay system | — | 1982-03-23 |
| 4307463 | Vital rate decoder | — | 1981-12-22 |
| 4234870 | Vital electronic code generator | — | 1980-11-18 |
| 4229663 | Apparatus for sensing vehicular mechanical motion | — | 1980-10-21 |
| 4181849 | Vital relay driver having controlled response time | — | 1980-01-01 |