David M. Nicholas
15Patents
12h-index
19Co-inventors
75Inventor score
Filing activity: Oct 26, 1979 → Oct 12, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4861351A | Production of hydrogen and carbon monoxide | Emerging Cross-Sectional Technologies | 105 | Expired |
| US4836833A | Production and recovery of hydrogen and carbon monoxide | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4761167A | Hydrocarbon recovery from fuel gas | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4522722A | Nitrogen and phosphorus removal from wastewater | Emerging Cross-Sectional Technologies | 47 | Expired |
| US6527980B1 | Reforming with intermediate reactant injection | Chemistry; Metallurgy | 40 | Expired |
| US4242108A | Hydrogen sulfide concentrator for acid gas removal systems | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5073356A | Integrated processes for the production of carbon monoxide | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4846851A | Purification of ammonia syngas | Chemistry; Metallurgy | 31 | Expired |
| US4654047A | Hybrid membrane/cryogenic process for hydrogen purification | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4732596A | Gas separation process | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5068058A | Production of ammonia synthesis gas | Chemistry; Metallurgy | 21 | Expired |
| US4988490A | Adsorptive process for recovering nitrogen from flue gas | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5011670A | Integrated reformer process for the production of carbon black | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4257897A | Process for reabsorption and retention of phosphorous by activated biomass | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5202057A | Production of ammonia synthesis gas | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.