Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4393820 | Rolling contact rocker arm and pivot | Ferdinand Freudenstein, Raymond L. Richard, Jr., Meng-Sang Chew | 1983-07-19 |
| 4332148 | Cyclic phase-change coupling | Ferdinand Freudenstein | 1982-06-01 |