John Saunders Stevenson
43Patents
9h-index
63Co-inventors
78Inventor score
Filing activity: Mar 30, 1984 → Feb 9, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4590326A | Multi-element thermocouple | Physics | 459 | Expired |
| US6086722A | Minimizing evaporator scaling and recovery of salts during gasification | Emerging Cross-Sectional Technologies | 18 | Expired |
| US8722003B1 | Apparatus and method to produce synthetic gas | Emerging Cross-Sectional Technologies | 18 | Active |
| US4801307A | Quench ring and dip-tube assembly | Chemistry; Metallurgy | 16 | Expired |
| US5656042A | Environmentally acceptable process for disposing of scrap plastic materials | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4828579A | Thermally insulated quench ring for a gasifier | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5904879A | Partial oxidation of waste plastic material | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4624684A | Process for feeding and gasifying solid carbonaceous fuel | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8951314B2 | Fuel feed system for a gasifier | Emerging Cross-Sectional Technologies | 9 | Active |
| US4705536A | Partial oxidation of vanadium-containing heavy liquid hydrocarbonaceous and solid carbonaceous fuels | Chemistry; Metallurgy | 9 | Expired |
| US7846226B2 | Apparatus for cooling and scrubbing a flow of syngas and method of assembling | Emerging Cross-Sectional Technologies | 9 | Active |
| US8496412B2 | System and method for eliminating process gas leak in a solids delivery system | Performing Operations; Transporting | 6 | Active |
| US8197564B2 | Method and apparatus for cooling syngas within a gasifier system | Emerging Cross-Sectional Technologies | 6 | Active |
| US6302578A | Behind the brick thermocouple | Physics | 6 | Expired |
| US8992641B2 | Fuel feed system for a gasifier | Emerging Cross-Sectional Technologies | 5 | Active |
| US5866091A | Method for minimizing hydrogen halide corrosion in a partial oxidation process | Chemistry; Metallurgy | 5 | Expired |
| US5647876A | Method of removing volatile metals from slag using an acid wash | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4732700A | Partial oxidation of vanadium-containing heavy liquid hydrocarbonaceous and solid carbonaceous fuels | Chemistry; Metallurgy | 4 | Expired |
| US8651772B2 | Rotary apparatus for use with a gasifier system and methods of using the same | Chemistry; Metallurgy | 3 | Active |
| US9228740B2 | Annular injector assembly and methods of assembling same | Emerging Cross-Sectional Technologies | 3 | Active |
| US8544633B2 | Segmented solid feed pump | Emerging Cross-Sectional Technologies | 3 | Active |
| US9181046B2 | System and method to supply a solid feedstock to a solids feeder | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US4788003A | Partial oxidation of ash-containing liquid hydrocarbonaceous and solid carbonaceous | Emerging Cross-Sectional Technologies | 3 | Expired |
| US9156631B2 | Multi-stage solids feeder system and method | Emerging Cross-Sectional Technologies | 3 | Active |
| US4557403A | Dry feeder for finely divided solids into high pressure atmosphere | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.