Inventor

Utah Tsao

Inventor

Jersey City, NJ, US

Overview

32→

Patents

1976–1990

Patent span

Chemistry

Primary field (CPC C)

Patents· 32 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds24%

C01BNon-metallic elements14%

B01DSeparation11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

Y02PClimate change mitigation technologies in the production or processing of goods7%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%

C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals4%

C01GCompounds containing metals not covered by subclasses c01d or c01f4%

C02FTreatment of water, waste water, sewage, or sludge3%

C10GCracking hydrocarbon oils3%

PatentTitleYear

4,975,181'Process and apparatus for ethylene production'1990 4,765,398'Vaporization of liquids'1988 4,714,109'Gas cooling with heat recovery'1987 4,698,219'Treatment of waste from iron ore reduction'1987 4,502,997'Treatment of purge gas'1985 4,476,160'Fluidized bed system'1984 4,391,880'Recovery of heat and vaporized material from a reaction effluent'1983 4,385,964'Method for preventing the undesirable condensation of aluminum chloride in a fractional distillation column'1983 4,360,405'Process for fractionating close boiling components of a multi-component system'1982 4,342,735'Stripping of aqueous ammonium carbonate solution'1982 4,315,802'Process and apparatus for fractionating close boiling components of a multi-component system'1982 4,246,417'Treatment of waste water from nitrile production'1981 4,243,650'Heat and volatized salt recovery from reaction effluent'1981 4,198,212'Coal gasification effluent treatment'1980 4,193,944'Purging of inerts in chlorinated hydrocarbon production'1980 4,190,639'Recovery of hydrogen chloride in carbo-chlorination of metal oxides'1980 4,134,926'Production of ethylene from ethanol'1979 4,129,604'Reactor effluent quench system'1978 4,113,786'Hydrogen chloride recovery'1978 4,094,915'Recovery of 12-dichloroethane from vinyl chloride production effluent'1978 4,074,660'Waste heat recovery from high temperature reaction effluents'1978 4,071,571'Control of molten salt oxidation in production of chlorinated hydrocarbons'1978 4,042,640'Oxychlorination of hydrocarbons'1977 4,039,597'Carbon dioxide removal from chlorinated hydrocarbon production system'1977 4,028,427'Aqueous stream treatment in chlorinated hydrocarbon production'1977 4,002,719'Recovery of nickel and cobalt carbonates from ammoniacal leach solutions'1977 3,992,460'Purging of tars and carbon from chlorinated hydrocarbon effluent'1976 3,985,816'Separation of 1,1-dichloroethane from 1,2-dichloroethane'1976 3,968,200'Reactor effluent quench system'1976 3,963,584'Recovery of 1,2-dichloroethane from vinyl chloride production effluent'1976 3,948,622'Separation of aqueous hydrogen chloride from gaseous chlorinated hydrocarbons'1976 3,946,114'Process for making protein from hydrocarbons'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1985Patents assigned to LUMMUS CO (27)· patent assignee history

1976–1990Based in Jersey City, NJ, US· patent location history

1983Patents assigned to ALUMINUM CO OF AMERICA (1)· patent assignee history

1987–1988Patents assigned to LUMMUS CREST INC (2)· patent assignee history

1987–1990Patents assigned to TSAO UTAH (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LUMMUS CO	27	1976–1985
LUMMUS CREST INC	2	1987–1988
TSAO UTAHself	2	1987–1990
ALUMINUM CO OF AMERICA	1	1983

Locations

Location	Patents	Span
Jersey City, New Jersey, US	32	1976–1990