Top Inventors at Environmental Technologies All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Glenn E. Spangler | 6 |
| 2 | Julio A. Reategui | 4 |
| 3 | Allan T. Bacon, Jr. | 4 |
| #4 | Donald N. Campbell | 3 |
| #5 | John P. Carrico | 2 |
| #6 | Mitchell Caughron | 2 |
| #7 | Peter C. Stroosnyder | 2 |
| #8 | Richard C. Getz | 2 |
| #9 | Robert C. Davis | 2 |
| #10 | Stanley W. Ellis | 2 |
| #11 | Charles H. Ward, II | 1 |
| #12 | Eugene F. Fafaul | 1 |
| #13 | Gautam B. Patel | 1 |
| #14 | James LaBelle | 1 |
| #15 | Jesse C. Patton | 1 |
| #16 | Joseph L. Mangum | 1 |
| #17 | Joseph E. Roehl | 1 |
| #18 | John Schmidt | 1 |
| #19 | John E. Studer | 1 |
| #20 | Kishore N. Vora | 1 |
| #21 | Nicholas Acosta | 1 |
| #22 | Richard Vernon Priddy | 1 |
| #23 | Ronald E. Burnham | 1 |
| #24 | Robert Wagner | 1 |
| #25 | Ronald E. Woodbury | 1 |
| #26 | Stephen Kubicsko | 1 |
| #27 | Thomas L. Maddox | 1 |
| #28 | Roger L. Shingleton | 1 |
| #29 | Kenneth B. Regiec | 1 |
| #30 | Jon K. Lapping | 1 |
| #31 | Alvin Dorman | 1 |