Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4966067 | Involute cam actuator with piston drive | David J. Lang, Richard E. Walsh | 1990-10-30 | $1,167,000 |
| 4932511 | Rotary travel limit stop apparatus | — | 1990-06-12 | $630,000 |
| 4890979 | No-back apparatus for propeller pitch control | Bruce A. Krandel, Allyn M. Aldrich | 1990-01-02 | $1,322,000 |
| 4878809 | Power source and control mechanism for propeller pitch control | — | 1989-11-07 | $815,000 |