Top Inventors at Gilbert Engineering All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Robert D. Hayward | 8 |
| 2 | William J. Down | 6 |
| 3 | Donald Andrew Burris | 3 |
| #4 | Herman P. Durst | 2 |
| #5 | Garrett Hoffman | 1 |
| #6 | Jimmy Ciesla Henningsen | 1 |
| #7 | Jonathan Carlisle | 1 |
| #8 | Micky G. Gilbert | 1 |
| #9 | William Bernard Lutz | 1 |
| #10 | John Zorzy | 1 |