Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870616 | Compact register set using a psram array | Keith B. DuLac | 1989-09-26 |
| 4866601 | Digital data bus architecture for computer disk drive controller | Keith B. DuLac | 1989-09-12 |