Patents per Year
Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 12497276 | Autonomous load moving electric vehicle | Luke G. Finley, Thomas J. Greier, Mark J. Underhill | 2025-12-16 | |
| 11274533 | Linear motor for pumping | Gregory M. Harnsberger, Carl Deirmengian, Brian Joseph Williams, David P. Cardamone | 2022-03-15 | |
| 5931739 | Fail-safe ride simulator | Gregory Joseph Guzewich, Larry D. Hall | 1999-08-03 | |
| 4986734 | Overspeed protection system for aircraft fan engine | Jeffrey D. Metcalf | 1991-01-22 | $2,520,000 |
| 4869106 | Governor checkout apparatus and method | Jeffrey D. Metcalf | 1989-09-26 | $1,350,000 |
| 4838403 | Overtravel stop activated control valve | — | 1989-06-13 | $4,564,000 |
| 4721196 | Overtravel stop | Jeffrey D. Metcalf | 1988-01-26 | $1,967,000 |
| 4693352 | Clutch mechanism | David J. Lang, William G. Durtschi | 1987-09-15 | $813,000 |