Top Inventors at Ultra Pac All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Calvin S. Krupa | 37 |
| 2 | Robert Knoss | 18 |
| 3 | Cal Krupa | 2 |
| #4 | Jeffrey M. Smith | 2 |
| #5 | Steven R. Anderson | 2 |
| #6 | Judie K. Smith | 1 |
| #7 | Richard F. Smith | 1 |
| #8 | Timothy Henry Kuitems | 1 |
| #9 | Clavin S. Krupa | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Calvin S. Krupa | 37 |
| 2 | Robert Knoss | 18 |
| 3 | Cal Krupa | 2 |
| #4 | Jeffrey M. Smith | 2 |
| #5 | Steven R. Anderson | 2 |
| #6 | Judie K. Smith | 1 |
| #7 | Richard F. Smith | 1 |
| #8 | Timothy Henry Kuitems | 1 |
| #9 | Clavin S. Krupa | 1 |