Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5430934 | Method for manufacturing a direct acting hydraulic tappet | David M. Groh, Steven L. Worthington, Martin W. Uitvlugt, Scott C. Johnson | 1995-07-11 |
| 5280771 | Direct acting hydraulic tappet | David M. Groh, Steven L. Worthington, Martin W. Uitvlugt, Scott C. Johnson | 1994-01-25 |