Patents per Year
Top Inventors at Quality Industries All Time
Showing 1–4 of 4 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Keith A. Addleman | 4 |
| 2 | Dwight C. Shaneour | 2 |
| 3 | Gary VanDeusen | 1 |
| 3 | James Wagoner | 1 |
Most Valuable Patents
| Patent | Est. Value | Year |
|---|---|---|
| Swing throw-over barrier | $105K | 1992 |