Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189941 | Power steering gear permitting separate mechanical and hydraulic balancing | Jeffrey J. Roethlisberger | 1993-03-02 |
| 5070958 | Variable effort steering gear | Ronald L. Harkrader | 1991-12-10 |
| 5046574 | Automotive power steering gear | Michael C. Melvin | 1991-09-10 |
| 4673051 | Power steering gear with two-way check valve | Richard Darling, Alan D. Holzhausen | 1987-06-16 |
| 4358211 | Pivot joint with visual preload indicator | Jerry M. Roethlisberger | 1982-11-09 |