Top Inventors at Appropriate Technology All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | David A. May | 4 |
| 2 | Bruce C. Gardner | 3 |
| 3 | Daniel L. Ingold | 3 |
| #4 | Scott Hausmann | 2 |
| #5 | Allan McLane | 2 |
| #6 | Daniel B. Bump | 1 |
| #7 | Robert E. Bibeau | 1 |
| #8 | Robert Stewart | 1 |
| #9 | James Woolnough | 1 |
| #10 | Andrew Edward Smith | 1 |