Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7267793 | Furnace for vacuum carburizing with unsaturated aromatic hydrocarbons | Ralph P. Poor, Stephen H. Verhoff, James E. Brug | 2007-09-11 |
| 7204952 | Vacuum furnace for carburizing with hydrocarbons | Ralph P. Poor, Stephen H. Verhoff, James E. Brug | 2007-04-17 |
| 5597189 | Prosthetic utensil and tool holding device for both the right hand and left hand | — | 1997-01-28 |