Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4577064 | Auto-balance circuit for battery feed in a telephone circuit | Frederick J. Kiko | 1986-03-18 |
| 4572927 | Current limiter for telephone office signalling | — | 1986-02-25 |
| 4560834 | Current limiter circuit for battery feed in a telephone circuit | — | 1985-12-24 |