Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679405 | Molded drain connection with insert | Charles Anthony Mitchell, Thaddeus J. Wawro, Charles E. Whipple | 1987-07-14 |
| 4421972 | Pulsed direct current arc welding | John Richard Duncan, Roderick G. Rohrberg, Ross A. Moyer | 1983-12-20 |