Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11148175 | Nutplate rotary abrasion tool | David Haynes Coleman, Stuart C. Street, Steven E. Twaddle | 2021-10-19 |
| 11149778 | Multiple nutplate rotary abrasion tool | David Haynes Coleman, Stuart C. Street, Steven E. Twaddle | 2021-10-19 |