Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5540621 | Rotary coupling apparatus using composite materials | Louis J. Keester, Brian E. Spencer, Duane V. Byerly | 1996-07-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5540621 | Rotary coupling apparatus using composite materials | Louis J. Keester, Brian E. Spencer, Duane V. Byerly | 1996-07-30 |