William Downs
29Patents
13h-index
40Co-inventors
81Inventor score
Filing activity: Mar 20, 1975 → Oct 29, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4793981A | Integrated injection and bag filter house system for SO.sub.x -NO.sub.x -particulate control with reagent/catalyst regeneration | Emerging Cross-Sectional Technologies | 109 | Expired |
| US6284199A | Apparatus for control of mercury | Mechanical Engineering; Lighting; Heating | 60 | Expired |
| US4263021A | Gas-liquid contact system | Performing Operations; Transporting | 54 | Expired |
| US6855859B2 | Method for controlling elemental mercury emissions | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US5309850A | Incineration of hazardous wastes using closed cycle combustion ash vitrification | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5585081A | SO.sub.x, NO.sub.x and particulate removal system | Performing Operations; Transporting | 39 | Expired |
| US5540897A | Improved SO.sub.x, NO.sub.x, and particulate removal system | Performing Operations; Transporting | 35 | Expired |
| US5439658A | Regenerable magnesium dry scrubbing | Performing Operations; Transporting | 30 | Expired |
| US4856352A | Gas sampling system for reactive gas-solid mixtures | Physics | 24 | Expired |
| US6503470B1 | Use of sulfide-containing liquors for removing mercury from flue gases | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4888158A | Droplet impingement device | Chemistry; Metallurgy | 21 | Expired |
| US3995006A | Sulphur dioxide absorption system | Performing Operations; Transporting | 17 | Expired |
| US6238459A | Ultra-high particulate collection of sub-micron aerosols | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7037474B2 | Use of sulfide-containing liquors for removing mercury from flue gases | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5484535A | Seawater effluent treatment downstream of seawater SO.sub.2 scrubber | Chemistry; Metallurgy | 9 | Expired |
| US4274587A | Water cooled burner nozzle for solvent refined coal | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5567394A | SO.sub.x , NO.sub.x , and particulate removal system | Performing Operations; Transporting | 8 | Expired |
| US9255478B2 | Reaction turbine and hybrid impulse reaction turbine | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US4912985A | Gas sampling system for reactive gas-solid mixtures | Physics | 7 | Expired |
| US6440379B1 | Apparatus to recover sulfur from concentrated acid gas into alkaline solution | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7585476B2 | Process for controlling the moisture concentration of a combustion flue gas | Emerging Cross-Sectional Technologies | 6 | Active |
| US5820830A | Waste recovery and utilization in the kraft recovery process | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7776293B2 | Low-temperature, moving bed catalytic reactor for control of NOx emissions from combustion | Emerging Cross-Sectional Technologies | 4 | Active |
| US5167931A | SO.sub.2 control using moving granular beds | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4558652A | Combustion of coal-water slurries | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.