Leo E. Hakka
13Patents
8h-index
13Co-inventors
69Inventor score
Filing activity: Apr 7, 1976 → Aug 22, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7056482B2 | Method for recovery of CO2 from gas streams | Emerging Cross-Sectional Technologies | 131 | Expired |
| US5019361A | Removal and recovery of sulphur dioxide from gas streams | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4059534A | Hydrocarbon/silicon oil lubricating compositions for low temperature use | Chemistry; Metallurgy | 23 | Expired |
| US5292407A | Process for converting heat stable amine salts to heat regenerable amine salts | Chemistry; Metallurgy | 21 | Expired |
| US7214358B2 | Low energy regenerable SO2 scrubbing process | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6531103B1 | Process for removing sulfur compounds from gas and liquid hydrocarbon streams | Chemistry; Metallurgy | 17 | Expired |
| US5202103A | Removal of sulfur dioxide from gas streams | Chemistry; Metallurgy | 12 | Expired |
| US5017350A | Gas scrubbing process | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5262139A | Removal of sulfur dioxide from gas streams | Chemistry; Metallurgy | 8 | Expired |
| US6342169B1 | Safe storage and transportation of sulfur dioxide | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7384616B2 | Waste gas treatment process including removal of mercury | Emerging Cross-Sectional Technologies | 2 | Active |
| US7416582B2 | Method and apparatus for NOx and Hg removal | Performing Operations; Transporting | 2 | Active |
| US6872371B2 | Method and apparatus for NOx and SO2 removal | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.