Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691288 | Torque sensor for internal-combustion engine | Ronald P. C. Lehrach | 1987-09-01 |
| 4459845 | Methods for determining rate of fuel flow to an engine | Joseph R. Keilbach, Ronald P. C. Lehrach | 1984-07-17 |