Top Inventors at Hdn Development All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Stanley N. Lowry | 9 |
| 2 | Garcie McCall | 5 |
| 3 | Stan Lowry | 3 |
| #4 | Charles Crawford | 2 |
| #5 | Guy M. Spivey | 2 |
| #6 | Joey R. Spruill | 2 |
| #7 | Richard Batte | 2 |
| #8 | Robert Simpson | 2 |
| #9 | Burton L. Siegal | 1 |
| #10 | Christopher T. Roth | 1 |
| #11 | Ernest V. Thompson, Jr. | 1 |
| #12 | Harry Gene Sockman | 1 |
| #13 | James Michael Rogers | 1 |
| #14 | Lance Jackson | 1 |
| #15 | Michael Wall | 1 |
| #16 | William Tschopp | 1 |