Top Inventors at Semmaterials All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Bill Grubba | 2 |
| 2 | James J. Barnat | 2 |
| 3 | Joseph Drbohlav, III | 1 |
| #4 | Michael L. Hines | 1 |
| #5 | Phillip B. Blankenship | 1 |
| #6 | Todd Thomas | 1 |
| #7 | Arlis Kadrmas | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Bill Grubba | 2 |
| 2 | James J. Barnat | 2 |
| 3 | Joseph Drbohlav, III | 1 |
| #4 | Michael L. Hines | 1 |
| #5 | Phillip B. Blankenship | 1 |
| #6 | Todd Thomas | 1 |
| #7 | Arlis Kadrmas | 1 |