Utah Tsao
32Patents
8h-index
6Co-inventors
64Inventor score
Filing activity: Mar 27, 1972 → Nov 9, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4714109A | Gas cooling with heat recovery | Performing Operations; Transporting | 75 | Expired |
| US4134926A | Production of ethylene from ethanol | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4129604A | Reactor effluent quench system | Chemistry; Metallurgy | 28 | Expired |
| US4074660A | Waste heat recovery from high temperature reaction effluents | Performing Operations; Transporting | 13 | Expired |
| US4198212A | Coal gasification effluent treatment | Chemistry; Metallurgy | 13 | Expired |
| US3968200A | Reactor effluent quench system | Chemistry; Metallurgy | 10 | Expired |
| US4391880A | Recovery of heat and vaporized material from a reaction effluent | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4385964A | Method for preventing the undesirable condensation of aluminum chloride in a fractional distillation column | Chemistry; Metallurgy | 8 | Expired |
| US3948622A | Separation of aqueous hydrogen chloride from gaseous chlorinated hydrocarbons | Chemistry; Metallurgy | 8 | Expired |
| US3963584A | Recovery of 1,2-dichloroethane from vinyl chloride production effluent | Chemistry; Metallurgy | 7 | Expired |
| US4315802A | Process and apparatus for fractionating close boiling components of a multi-component system | Chemistry; Metallurgy | 6 | Expired |
| US4765398A | Vaporization of liquids | Emerging Cross-Sectional Technologies | 6 | Expired |
| US3992460A | Purging of tars and carbon from chlorinated hydrocarbon effluent | Chemistry; Metallurgy | 6 | Expired |
| US4042640A | Oxychlorination of hydrocarbons | Chemistry; Metallurgy | 6 | Expired |
| US4975181A | Process and apparatus for ethylene production | Chemistry; Metallurgy | 6 | Expired |
| US4039597A | Carbon dioxide removal from chlorinated hydrocarbon production system | Chemistry; Metallurgy | 6 | Expired |
| US4246417A | Treatment of waste water from nitrile production | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4243650A | Heat and volatized salt recovery from reaction effluent | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4360405A | Process for fractionating close boiling components of a multi-component system | Chemistry; Metallurgy | 5 | Expired |
| US4002719A | Recovery of nickel and cobalt carbonates from ammoniacal leach solutions | Chemistry; Metallurgy | 5 | Expired |
| US4071571A | Control of molten salt oxidation in production of chlorinated hydrocarbons | Chemistry; Metallurgy | 4 | Expired |
| US4113786A | Hydrogen chloride recovery | Chemistry; Metallurgy | 4 | Expired |
| US4342735A | Stripping of aqueous ammonium carbonate solution | Chemistry; Metallurgy | 4 | Expired |
| US4028427A | Aqueous stream treatment in chlorinated hydrocarbon production | Chemistry; Metallurgy | 4 | Expired |
| US4190639A | Recovery of hydrogen chloride in carbo-chlorination of metal oxides | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.