James H. Ewing
12Patents
11h-index
3Co-inventors
65Inventor score
Filing activity: Nov 17, 1975 → Feb 24, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4008619A | Vacuum monitoring | Emerging Cross-Sectional Technologies | 233 | Expired |
| US4522058A | Laminar-flow channeling in thermal flowmeters and the like | Physics | 38 | Expired |
| US4679585A | Flowmeter-controlled valving | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4464932A | Thermal mass flowmetering | Physics | 31 | Expired |
| US5361800A | Liquid pump and vaporizer | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4796854A | Balanced solenoid valves | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4571801A | Method of manufacturing a cartridge unit for establishing controlled laminar-flow conditions | Emerging Cross-Sectional Technologies | 25 | Expired |
| US5553188A | Vaporizer and liquid delivery system using same | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5371828A | System for delivering and vaporizing liquid at a continuous and constant volumetric rate and pressure | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5040559A | Modulating positive shutoff mechanism | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4327894A | Linearized controlled valves | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5437542A | Positive displacement pump system | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.