Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267257 | Vacuum furnace with convection heating and cooling | Suresh C. Jhawar, John K. Grier | 1993-11-30 |
| 4771166 | Electric furnace heater mounting | Dane T. McGuire, John K. Grier, Harold Martin Bone, Suresh C. Jhawar | 1988-09-13 |