Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884035 | Wide range digital phase/frequency detector | Robert J. Lewandowski | 1989-11-28 |
| 4878231 | N-PI phase/frequency detector | — | 1989-10-31 |
| 4843332 | Wide range digital phase/frequency detector | Robert J. Lewandowski | 1989-06-27 |