Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369522 | Singly-balanced active mixer circuit | Frank J. Cerny, Jr., George Helm | 1983-01-18 |
| 4193036 | Balanced active mixer circuit | Frank J. Cerny, Jr., George Helm | 1980-03-11 |