Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4727312 | Circuit tester | — | 1988-02-23 |
| 4649784 | Method and apparatus for sensing activity for a keyboard and the like | Robert J. Hager | 1987-03-17 |
| 4300846 | High speed print head system and method | Stanley E. Rose | 1981-11-17 |
| 4194113 | Method and apparatus for isolating faults in a logic circuit | Robert E. Enfield, Eric Sacher | 1980-03-18 |