Inventor · disambiguated record
Harry Cheung
Also filed as: CHEUNG HARRY · CHEUNG HARRY LUP SUN
33 granted patents·1 pending application·1,015 citations·filing 1976–2018
98Inventor score
Files withUNION CARBIDE CORP21PRAXAIR TECHNOLOGY INC7UNION CARBIDE IND GASES TECH4BENEFIT VANTAGE LTD1BLUE IGLOO INC1
Top patents by PatentIndex Score
34 records- 0198US4235044ASplit stream methanation processUNION CARBIDE CORP·Filed 1978·Granted Nov 25, 1980·104 cites·32 claims
- 0294US4822395AAir separation process and apparatus for high argon recovery and moderate pressure nitrogen recoveryUNION CARBIDE CORP·Filed 1988·Granted Apr 18, 1989·72 cites·20 claims
- 0392US4453957ADouble column multiple condenser-reboiler high pressure nitrogen processUNION CARBIDE CORP·Filed 1982·Granted Jun 12, 1984·62 cites·18 claims
- 0492US4058485APorous metal-alumina compositeUNION CARBIDE CORP·Filed 1976·Granted Nov 15, 1977·50 cites·7 claims
- 0590US6301923B1Method for generating a cold gasPRAXAIR TECHNOLOGY INC·Filed 2001·Granted Oct 16, 2001·48 cites·9 claims
- 0689US4193793APorous metal-alumina compositeUNION CARBIDE CORP·Filed 1977·Granted Mar 18, 1980·41 cites·7 claims
- 0788US4934148ADry, high purity nitrogen production process and systemUNION CARBIDE CORP·Filed 1989·Granted Jun 19, 1990·66 cites·17 claims
- 0886US4560397AProcess to produce ultrahigh purity oxygenUNION CARBIDE CORP·Filed 1984·Granted Dec 24, 1985·39 cites·33 claims
- 0985US4121917AEthylene production with utilization of LNG refrigerationUNION CARBIDE CORP·Filed 1976·Granted Oct 24, 1978·40 cites·20 claims
- 1083US5098457AMethod and apparatus for producing elevated pressure nitrogenUNION CARBIDE IND GASES TECH·Filed 1991·Granted Mar 24, 1992·46 cites·16 claims
- 1183US4345925AProcess for the production of high pressure oxygen gasUNION CARBIDE CORP·Filed 1980·Granted Aug 24, 1982·36 cites·7 claims
- 1280US10390226B1Mobile identification method based on SIM card and device-related parametersBENEFIT VANTAGE LTD·Filed 2018·Granted Aug 20, 2019·4 cites·8 claims
- 1380US4448595ASplit column multiple condenser-reboiler air separation processUNION CARBIDE CORP·Filed 1982·Granted May 15, 1984·33 cites·22 claims
- 1478US4594085AHybrid nitrogen generator with auxiliary reboiler driveUNION CARBIDE CORP·Filed 1984·Granted Jun 10, 1986·29 cites·13 claims
- 1575US5463871ASide column cryogenic rectification system for producing lower purity oxygenPRAXAIR TECHNOLOGY INC·Filed 1994·Granted Nov 7, 1995·32 cites·9 claims
- 1675US4568528AProcess to produce a krypton-xenon concentrate and a gaseous oxygen productUNION CARBIDE CORP·Filed 1984·Granted Feb 4, 1986·26 cites·18 claims
- 1774US5237823ACryogenic air separation using random packingPRAXAIR TECHNOLOGY INC·Filed 1992·Granted Aug 24, 1993·32 cites·8 claims
- 1872US6250096B1Method for generating a cold gasPRAXAIR TECHNOLOGY INC·Filed 2000·Granted Jun 26, 2001·20 cites·5 claims
- 1971US4574006AProcess to produce a krypton-xenon concentrate from a liquid feedUNION CARBIDE CORP·Filed 1984·Granted Mar 4, 1986·22 cites·16 claims
- 2066US5069698AXenon production systemUNION CARBIDE IND GASES TECH·Filed 1990·Granted Dec 3, 1991·26 cites·19 claims
- 2166US4560398AAir separation process to produce elevated pressure oxygenUNION CARBIDE CORP·Filed 1984·Granted Dec 24, 1985·19 cites·13 claims
- 2265US4902321ACryogenic rectification process for producing ultra high purity nitrogenUNION CARBIDE CORP·Filed 1989·Granted Feb 20, 1990·20 cites·11 claims
- 2364US4272259AGas gettering systemUNION CARBIDE CORP·Filed 1977·Granted Jun 9, 1981·19 cites·5 claims
- 2461US4647299AProcess to produce an oxygen-free krypton-xenon concentrateUNION CARBIDE CORP·Filed 1984·Granted Mar 3, 1987·16 cites·18 claims
- 2558US5074898ACryogenic air separation method for the production of oxygen and medium pressure nitrogenUNION CARBIDE IND GASES TECH·Filed 1990·Granted Dec 24, 1991·19 cites·9 claims
- 2657US5385024ACryogenic rectification system with improved recoveryPRAXAIR TECHNOLOGY INC·Filed 1993·Granted Jan 31, 1995·17 cites·8 claims
- 2755US2016140654A1Automated process workflow for the entire mortgage loan and closing processBLUE IGLOO INC·Filed 2014·Application pending·0 cites
- 2854US4399120AHydrogen-water isotopic exchange processUNION CARBIDE CORP·Filed 1979·Granted Aug 16, 1983·10 cites·23 claims
- 2953US4604117AHybrid nitrogen generator with auxiliary column driveUNION CARBIDE CORP·Filed 1984·Granted Aug 5, 1986·12 cites·15 claims
- 3051US4755202AProcess and apparatus to produce ultra high purity oxygen from a gaseous feedUNION CARBIDE CORP·Filed 1987·Granted Jul 5, 1988·12 cites·25 claims
- 3150US5195324ACryogenic rectification system for producing nitrogen and ultra high purity oxygenPRAXAIR TECHNOLOGY INC·Filed 1992·Granted Mar 23, 1993·14 cites·10 claims
- 3249US5303556ASingle column cryogenic rectification system for producing nitrogen gas at elevated pressure and high purityPRAXAIR TECHNOLOGY INC·Filed 1993·Granted Apr 19, 1994·14 cites·8 claims
- 3343US4780118AProcess and apparatus to produce ultra high purity oxygen from a liquid feedUNION CARBIDE CORP·Filed 1987·Granted Oct 25, 1988·8 cites·23 claims
- 3438US5161380ACryogenic rectification system for enhanced argon productionUNION CARBIDE IND GASES TECH·Filed 1991·Granted Nov 10, 1992·7 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →