Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4675761 | Magnetic head positioning apparatus and method | William H. Ashbee, Alan J. Kirton, Larry E. Rittenhouse, James A. Valent | 1987-06-23 |
| 4564794 | Phase locked loop and a motor control servo | Larry E. Rittenhouse | 1986-01-14 |