Top Inventors at International Telesystems All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | James J. Frimmel, Jr. | 5 |
| 2 | Bruno A. Rist | 4 |
| 3 | Adrian J. DeVries | 4 |
| #4 | Richard N. Deglin | 3 |
| #5 | Thomas Ouellette | 3 |
| #6 | Dzu-Wan Syu | 2 |
| #7 | Alan R. Trefzger | 2 |
| #8 | Charles A. Baldi | 1 |
| #9 | Douglas A. Samuelson | 1 |
| #10 | John R. Ramsay | 1 |
| #11 | John W. Ramsay | 1 |
| #12 | Lester A. Potter | 1 |
| #13 | Thomas Quellette | 1 |
| #14 | Bassem M. Girgis | 1 |