Top Inventors at Glasstech International All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Harold A. McMaster | 3 |
| 2 | David B. Nitschke | 2 |
| 3 | Jeffrey N. Klopping | 2 |
| #4 | Dexter H. McMaster | 1 |
| #5 | Eric D. Fintel | 1 |
| #6 | Eustace H. Mumford | 1 |
| #7 | Gary D. Brinker | 1 |
| #8 | Michael J. Cicak | 1 |
| #9 | Norman C. Nitschke | 1 |
| #10 | Ronald A. McMaster | 1 |
| #11 | Sven E. F. Soedervall | 1 |
| #12 | Stanley W. Joehlin | 1 |