Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885650 | Magnetic head having boron carbide surfaces | Charles B. Hebeler | 1989-12-05 |
| 4338610 | Modular-head endorser | Kenneth R. Sellen, Jimmie Neill, William Barz | 1982-07-06 |
| 4336037 | Continuous deaeration system for a fluid pump system | Alexander Goldis, Kenneth R. Sellen | 1982-06-22 |
| 4320407 | Fluid pump system for an ink jet printer | Alexander Goldis, Kenneth R. Sellen | 1982-03-16 |
| 4232217 | Stepper motor drive for a mechanical camshaft | Jurgen A. Juziuk, Ronald H. Mack, Edward A. Nicol | 1980-11-04 |