Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6067390 | Ambient load waveguide switch | Peter S. Hames, Ira Lehman | 2000-05-23 |
| 5035396 | Disk drive unit | Richard G. Krum | 1991-07-30 |
| 4923406 | Spindle motor flex cable | — | 1990-05-08 |
| 4908715 | Disk drive unit | Richard G. Krum | 1990-03-13 |