Top Inventors at Demco Nv All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Daniel E. Burns | 6 |
| 2 | Douglas E. Engbring | 1 |
| 3 | James H. Babb | 1 |
| #4 | Janet S. Nelson | 1 |
| #5 | Johnny Cox | 1 |
| #6 | Marcus Philippus Maria Druyts | 1 |
| #7 | Peteralv Martien Brabers | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Daniel E. Burns | 6 |
| 2 | Douglas E. Engbring | 1 |
| 3 | James H. Babb | 1 |
| #4 | Janet S. Nelson | 1 |
| #5 | Johnny Cox | 1 |
| #6 | Marcus Philippus Maria Druyts | 1 |
| #7 | Peteralv Martien Brabers | 1 |