Stephen Allen Johnson
12Patents
9h-index
15Co-inventors
69Inventor score
Filing activity: Mar 6, 1984 → Mar 23, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7332002B2 | Low sulfur coal additive for improved furnace operation | Emerging Cross-Sectional Technologies | 67 | Expired |
| US6729248B2 | Low sulfur coal additive for improved furnace operation | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6773471B2 | Low sulfur coal additive for improved furnace operation | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4748919A | Low nox multi-fuel burner | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US4732694A | Suds suppressor compositions and their use in detergent compositions | Emerging Cross-Sectional Technologies | 34 | Expired |
| US5275553A | Apparatus for combustion, pollution and chemical process control | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US8439989B2 | Additives for mercury oxidation in coal-fired power plants | Mechanical Engineering; Lighting; Heating | 17 | Active |
| US5112215A | Apparatus for combustion, pollution and chemical process control | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US8919266B2 | Low sulfur coal additive for improved furnace operation | Emerging Cross-Sectional Technologies | 10 | Active |
| US5820842A | Silicon refining process | Physics | 2 | Expired |
| US9951287B2 | Low sulfur coal additive for improved furnace operation | Emerging Cross-Sectional Technologies | 1 | Active |
| US11168274B2 | Low sulfur coal additive for improved furnace operation | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.