Top Inventors at Denco All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Dudley W. C. Spencer | 37 |
| 2 | Ivars V. Ivansons | 14 |
| 3 | John B. Shaposka | 13 |
| #4 | Valdis Ivansons | 6 |
| #5 | Theresa M. Preston | 2 |
| #6 | David Macklin | 1 |
| #7 | Gregory M. Bak | 1 |
| #8 | Hideki Kato | 1 |
| #9 | Kazuyoshi Isaji | 1 |
| #10 | Vadlis Ivansons | 1 |
| #11 | Esmond Grattan | 1 |
| #12 | Robert J. Beird | 1 |