Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4458452 | Control for grinding machine | William R. Hungerford | 1984-07-10 | |
| 4415985 | Driving circuit for cathode ray tube | Thomas W. Hartford | 1983-11-15 | |
| D267944 | Control panel | Constantine Vintzel | 1983-02-15 | |
| 4344127 | Microprocessor based process control system | Thomas W. Hartford, William R. Hungerford, William J. Perzanowski, Reno V. Benaglio | 1982-08-10 | $1,009,000 |
| 4272818 | Position feedback control system for a numerically controlled machine tool | — | 1981-06-09 | $1,123,000 |