Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6299509 | Tumble medium and method for surface treatment | Gary E. Wheat, Linda R. Crenshaw, Jon Conrad Schaeffer | 2001-10-09 |
| 6220947 | Tumble medium and method for surface treatment | Gary E. Wheat, Linda R. Crenshaw, Jon Conrad Schaeffer | 2001-04-24 |