Inventor · disambiguated record
Shivaji Sircar
Also filed as: KRATZ WILBUR C · SIRCAR SHIVAJI
59 granted patents·1 pending application·4,002 citations·filing 1973–2014
99Inventor score
Top patents by PatentIndex Score
60 records- 0199US4784672ARegeneration of adsorbentsAIR PROD & CHEM·Filed 1987·Granted Nov 15, 1988·213 cites·10 claims
- 0298US4249915ARemoval of water and carbon dioxide from airAIR PROD & CHEM·Filed 1979·Granted Feb 10, 1981·156 cites·14 claims
- 0398US4077779AHydrogen purification by selective adsorptionAIR PROD & CHEM·Filed 1976·Granted Mar 7, 1978·164 cites·15 claims
- 0497US5435836AHydrogen recovery by adsorbent membranesAIR PROD & CHEM·Filed 1993·Granted Jul 25, 1995·130 cites·29 claims
- 0597US5354547AHydrogen recovery by adsorbent membranesAIR PROD & CHEM·Filed 1992·Granted Oct 11, 1994·161 cites·14 claims
- 0697US4472178AAdsorptive process for the removal of carbon dioxide from a gasAIR PROD & CHEM·Filed 1983·Granted Sep 18, 1984·129 cites·8 claims
- 0797US4013429AFractionation of air by adsorptionAIR PROD & CHEM·Filed 1975·Granted Mar 22, 1977·121 cites·10 claims
- 0896US5104425AGas separation by adsorbent membranesAIR PROD & CHEM·Filed 1991·Granted Apr 14, 1992·128 cites·19 claims
- 0996US4477265AArgon purificationAIR PROD & CHEM·Filed 1982·Granted Oct 16, 1984·89 cites·14 claims
- 1095US4770676ARecovery of methane from land fill gasAIR PROD & CHEM·Filed 1987·Granted Sep 13, 1988·224 cites·38 claims
- 1195US4171206ASeparation of multicomponent gas mixturesAIR PROD & CHEM·Filed 1978·Granted Oct 16, 1979·77 cites·27 claims
- 1295US4171207ASeparation of multicomponent gas mixtures by pressure swing adsorptionAIR PROD & CHEM·Filed 1978·Granted Oct 16, 1979·56 cites·22 claims
- 1394US5753010AHydrogen recovery by pressure swing adsorption integrated with adsorbent membranesAIR PROD & CHEM·Filed 1996·Granted May 19, 1998·136 cites·29 claims
- 1494US5071449AGas separation by rapid pressure swing adsorptionAIR PROD & CHEM·Filed 1990·Granted Dec 10, 1991·106 cites·22 claims
- 1593US6328945B1Integrated steam methane reforming process for producing carbon monoxideAIR PROD & CHEM·Filed 1996·Granted Dec 11, 2001·88 cites·19 claims
- 1693US6103143AProcess and apparatus for the production of hydrogen by steam reforming of hydrocarbonAIR PROD & CHEM·Filed 1999·Granted Aug 15, 2000·103 cites·24 claims
- 1793US5332424AHydrocarbon fractionation by adsorbent membranesAIR PROD & CHEM·Filed 1993·Granted Jul 26, 1994·110 cites·17 claims
- 1893US4477264APressure swing adsorption process for a medical oxygen generator for home useAIR PROD & CHEM·Filed 1983·Granted Oct 16, 1984·70 cites·6 claims
- 1993US4472177AControl system and method for air fractionation by vacuum swing adsorptionAIR PROD & CHEM·Filed 1982·Granted Sep 18, 1984·74 cites·18 claims
- 2093US4264340AVacuum swing adsorption for air fractionationAIR PROD & CHEM·Filed 1979·Granted Apr 28, 1981·70 cites·7 claims
- 2192US5447559AHydrogen recovery by adsorbent membranesAIR PROD & CHEM·Filed 1994·Granted Sep 5, 1995·84 cites·2 claims
- 2292US4557736ABinary ion exchanged type X zeolite adsorbentAIR PROD & CHEM·Filed 1984·Granted Dec 10, 1985·65 cites·11 claims
- 2392US3957463AOxygen enrichment processAIR PROD & CHEM·Filed 1973·Granted May 18, 1976·62 cites·7 claims
- 2491US5779768ARecovery of volatile organic compounds from gas streamsAIR PROD & CHEM·Filed 1996·Granted Jul 14, 1998·103 cites·19 claims
- 2591US4329158AAir fractionation by pressure swing adsorptionAIR PROD & CHEM·Filed 1980·Granted May 11, 1982·67 cites·18 claims
- 2690US5084075AVacuum swing adsorption process for production of 95+% n2 from ambient airAIR PROD & CHEM·Filed 1990·Granted Jan 28, 1992·75 cites·11 claims
- 2790US4790858AFractionation of multicomponent gas mixtures by pressure swing adsorptionAIR PROD & CHEM·Filed 1988·Granted Dec 13, 1988·73 cites·7 claims
- 2889US8226745B2Miniature oxygen concentrators and methodsSIEW-WAH CHAI·Filed 2010·Granted Jul 24, 2012·28 cites·19 claims
- 2989US5240472AMoisture removal from a wet gasAIR PRODUCTS AND CHEMICLS INC·Filed 1992·Granted Aug 31, 1993·82 cites·5 claims
- 3089US4756723APreparation of high purity oxygenAIR PROD & CHEM·Filed 1987·Granted Jul 12, 1988·67 cites·7 claims
- 3188US6322612B1PSA process for removal of bulk carbon dioxide from a wet high-temperature gasAIR PROD & CHEM·Filed 1999·Granted Nov 27, 2001·92 cites·27 claims
- 3287US5030768AProcess for preparing alkyl tert-alkyl ethersAIR PROD & CHEM·Filed 1990·Granted Jul 9, 1991·28 cites·11 claims
- 3385US4813980ARecovery of nitrogen, hydrogen and carbon dioxide from hydrocarbon reformateAIR PROD & CHEM·Filed 1987·Granted Mar 21, 1989·54 cites·18 claims
- 3484US5507856AHydrogen recovery by adsorbent membranesAIR PROD & CHEM·Filed 1994·Granted Apr 16, 1996·56 cites·8 claims
- 3584US5431864AMethod of making composite porous carbonaceous membranesAIR PROD & CHEM·Filed 1994·Granted Jul 11, 1995·49 cites·22 claims
- 3684US4792441AAmmonia synthesisAIR PROD & CHEM·Filed 1988·Granted Dec 20, 1988·35 cites·14 claims
- 3783US6468328B2Oxygen production by adsorptionAIR PROD & CHEM·Filed 2000·Granted Oct 22, 2002·35 cites·17 claims
- 3881US9649589B2Oxygen concentrator system and methodUNIV LEHIGH·Filed 2014·Granted May 16, 2017·6 cites·22 claims
- 3981US4705541AProduction of mixed gases of controlled composition by pressure swing adsorptionAIR PROD & CHEM·Filed 1987·Granted Nov 10, 1987·46 cites·10 claims
- 4080US6312658B1Integrated steam methane reforming process for producing carbon monoxide and hydrogenAIR PROD & CHEM·Filed 1996·Granted Nov 6, 2001·41 cites·9 claims
- 4180US5026482ASeparation of liquid mixtures by concentration swing adsorptionAIR PROD & CHEM·Filed 1989·Granted Jun 25, 1991·43 cites·18 claims
- 4279US4971606AClosed-loop thermal regeneration of adsorbents containing reactive adsorbatesAIR PROD & CHEM·Filed 1989·Granted Nov 20, 1990·44 cites·22 claims
- 4377US5882380APressure swing adsorption process with a single adsorbent bedAIR PROD & CHEM·Filed 1997·Granted Mar 16, 1999·48 cites·13 claims
- 4476US5507860AComposite porous carbonaceous membranesAIR PROD & CHEM·Filed 1994·Granted Apr 16, 1996·34 cites·2 claims
- 4575US5030775AProcess for preparing motor fuel grade alcoholAIR PROD & CHEM·Filed 1990·Granted Jul 9, 1991·14 cites·8 claims
- 4673US5753011AOperation of staged adsorbent membranesAIR PROD & CHEM·Filed 1997·Granted May 19, 1998·42 cites·18 claims
- 4773US4529416AGas separation kinetics in commercial pelletsAIR PROD & CHEM·Filed 1983·Granted Jul 16, 1985·25 cites·12 claims
- 4868US6146447AOxygen generation process and system using single adsorber and single blowerAIR PROD & CHEM·Filed 1998·Granted Nov 14, 2000·35 cites·20 claims
- 4966US6303092B1Process for operating equilibrium controlled reactionsAIR PROD & CHEM·Filed 1995·Granted Oct 16, 2001·21 cites·22 claims
- 5065US4685939AProduction of oxygen enriched airAIR PROD & CHEM·Filed 1985·Granted Aug 11, 1987·25 cites·11 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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