Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805470 | Starter jaw blocker | — | 1989-02-21 |
| 4567965 | Propeller brake | — | 1986-02-04 |
| 4558770 | Freewheel unit | — | 1985-12-17 |
| 4505108 | Integrated hydraulic control circuit for jet engine thrust reverser and variable exhaust nozzle | John H. Ferguson, Jr., John R. Hoffman | 1985-03-19 |
| 4445830 | Radial vane pump having variable displacement | — | 1984-05-01 |
| 4383647 | Integrated hydraulic control circuit for jet engine thrust reverser and variable exhaust nozzle | John H. Ferguson, Jr., John R. Hoffman | 1983-05-17 |
| 4376614 | Propeller brake for a turbo-prop engine | — | 1983-03-15 |
| 4357925 | Distributor injection pump for diesel engines | — | 1982-11-09 |
| 4272227 | Variable displacement balanced vane pump | — | 1981-06-09 |
| 4241753 | Control valve for use with variable displacement piston pump | Louis R. Erwin | 1980-12-30 |
| 4182365 | Control valve for use with variable displacement piston pump | — | 1980-01-08 |