Top Inventors at Roberts Filter Manufacturing All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | R. Lee Roberts | 7 |
| 2 | Douglas H. Eden | 4 |
| 3 | Robert L. Roberts | 3 |
| #4 | Annabelle Kim | 3 |
| #5 | Charles V. Roberts | 1 |
| #6 | Donald John Mackay | 1 |
| #7 | Peter J. Neuspiel | 1 |
| #8 | William F. Sarra | 1 |
| #9 | Andrew Scott Taylor | 1 |