Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5463809 | Method of making a powdered metal camshaft assembly | Ronald J. Hoffman | 1995-11-07 |
| 5293847 | Powdered metal camshaft assembly | Ronald J. Hoffman | 1994-03-15 |
| 5267536 | Four-stroke engine having an improved valve mechanism | Youichi Imagawa, Hiroshi Kohmoto | 1993-12-07 |