Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5789914 | Onboard digital locomotive horsepower multimeter | Jack Matthews | 1998-08-04 | |
| 5627336 | Percussion instrument having an electromagnetic sensor | — | 1997-05-06 | |
| 5557198 | Onboard digital locomotive multimeter | Jack Matthews | 1996-09-17 | |
| 5016730 | Acoustic filter having acoustic isolation of internal flow element | John Kaiser, James J. Lockshaw, Juan J. Ruiz | 1991-05-21 | |
| 4794267 | Anti-lock braking system check valve with build orifice | — | 1988-12-27 | $3,195,000 |