Top Inventors at Flow Control Equipment All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | H. Milton Hoff | 4 |
| 2 | Randall Ray | 3 |
| 3 | Stephen L. Witte, Sr. | 3 |
| #4 | Charles M. Hart | 2 |
| #5 | Thomas E. Evans | 2 |
| #6 | J. William Heathcott | 1 |
| #7 | John L. Tillman, Jr. | 1 |
| #8 | Lawrence F. Angelo | 1 |
| #9 | Lindell R. Trout | 1 |