Top Inventors at Product Systems Incorporated All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Mark J. Beck | 14 |
| 2 | Richard B. Vennerbeck | 10 |
| 3 | Eric G. Liebscher | 8 |
| #4 | Raymond Y. Lillard | 7 |
| #5 | Frank M. Haidinyak | 2 |
| #6 | Gerard O'Connor | 1 |
| #7 | Hugh Cahill | 1 |
| #8 | John Cahill | 1 |
| #9 | Richard Beck, Jr. | 1 |