John K. Grier
5Patents
5h-index
6Co-inventors
48Inventor score
Filing activity: Aug 5, 1987 → Sep 19, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5267257A | Vacuum furnace with convection heating and cooling | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5497394A | Electric heater element support | Electricity | 13 | Expired |
| US4799881A | """Twist-lock"" gas nozzle for a heat treating furnace" | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4771166A | Electric furnace heater mounting | Electricity | 6 | Expired |
| US5524020A | Vacuum furnace with movable hot zone | Chemistry; Metallurgy | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.