Inventor · disambiguated record
Alfred E. Keller
Also filed as: KELLER ALFRED · KELLER ALFRED E
45 granted patents·2 pending applications·624 citations·filing 1975–2015
98Inventor score
Top patents by PatentIndex Score
47 records- 0192US7226572B1Compact sulfur recovery plant and processCONOCOPHILLIPS CO·Filed 2006·Granted Jun 5, 2007·24 cites·29 claims
- 0291US7560088B2Compact sulfur recovery plant and processCONOCOPHILLIPS CO·Filed 2007·Granted Jul 14, 2009·22 cites·29 claims
- 0391US7501111B2Increased capacity sulfur recovery plant and process for recovering elemental sulfurCONOCO PHILLIPS COMPANY·Filed 2006·Granted Mar 10, 2009·24 cites·23 claims
- 0491US6946111B2Short contact time catalytic partial oxidation process for recovering sulfur from an H2S containing gas streamCONOCOPHILLIPS CO·Filed 2001·Granted Sep 20, 2005·55 cites·43 claims
- 0591US6403051B1Recovery of sulfur from H2S and concurrent production of H2 using short contact time CPOXCONOCO INC·Filed 2000·Granted Jun 11, 2002·43 cites·11 claims
- 0690US9138675B2Process for degassing condensed sulfur from a claus sulfur recovery systemPHILLIPS 66 CO·Filed 2014·Granted Sep 22, 2015·6 cites·27 claims
- 0787US7138101B2Two-stage catalytic process for recovering sulfur from an H2S-containing gas streamCONOCOPHILLIPS CO·Filed 2005·Granted Nov 21, 2006·15 cites·38 claims
- 0887US6800269B2Short contact time catalytic sulfur recovery system for removing H2S from a waste gas streamCONOCOPHILLIPS CO·Filed 2001·Granted Oct 5, 2004·37 cites·33 claims
- 0987US6579510B2SPOX-enhanced process for production of synthesis gasFiled 2000·Granted Jun 17, 2003·32 cites·20 claims
- 1086US4970344AReactivation of spent alkanolamineCONOCO INC·Filed 1987·Granted Nov 13, 1990·43 cites·20 claims
- 1182US6773691B2Controlling syngas H2:CO ratio by controlling feed hydrocarbon compositionCONOCOPHILLIPS CO·Filed 2002·Granted Aug 10, 2004·23 cites·23 claims
- 1282US5006258ARegeneration of acidic cationic exchange resin used in the reactivation of spent alkanolamineCONOCO INC·Filed 1989·Granted Apr 9, 1991·47 cites·24 claims
- 1380US7357908B2Apparatus and catalytic partial oxidation process for recovering sulfur from an H2S-containing gas streamCONOCOPHILLIPS CO·Filed 2005·Granted Apr 15, 2008·9 cites·11 claims
- 1477US7326397B2Catalytic partial oxidation process for recovering sulfur from an H2S-containing gas streamCONOCOPHILLIPS CO·Filed 2005·Granted Feb 5, 2008·4 cites·30 claims
- 1576US7108842B2Process for the catalytic partial oxidation of H2S using staged addition of oxygenCONOCOPHILLIPS CO·Filed 2004·Granted Sep 19, 2006·14 cites·36 claims
- 1675US6881394B2Steam reformer for methane with internal hydrogen separation and combustionCONOCOPHILLIPS CO·Filed 2002·Granted Apr 19, 2005·13 cites·18 claims
- 1773US7041621B2Sulfided catalysts for improved performance in hydrocarbon processingCONOCOPHILLIPS CO·Filed 2003·Granted May 9, 2006·12 cites·44 claims
- 1872US9789433B2Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recoveryPHILLIPS 66 CO·Filed 2014·Granted Oct 17, 2017·0 cites·1 claims
- 1972US9205364B2Process for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recoveryPHILLIPS 66 CO·Filed 2014·Granted Dec 8, 2015·0 cites·17 claims
- 2072US7658906B2Sulfur recovery plantCONOCOPHILLIPS CO·Filed 2008·Granted Feb 9, 2010·2 cites·14 claims
- 2171US7122170B2Catalysts for SPOC™ enhanced synthesis gas productionCONOCOPHILLIPS CO·Filed 2002·Granted Oct 17, 2006·10 cites·35 claims
- 2269US7998451B2Sulfur degassing processCONOCOPHILLIPS CO·Filed 2008·Granted Aug 16, 2011·1 cites·11 claims
- 2367US9192887B2Process for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from claus sulfur recoveryPHILLIPS 66 CO·Filed 2014·Granted Nov 24, 2015·0 cites·17 claims
- 2466US5596930AProcess and device for moistening a moving printed then thermally dried web of materialWEITMANN & KONRAD FA·Filed 1993·Granted Jan 28, 1997·17 cites·34 claims
- 2565US5368818AMonitoring and control system for selective regeneration of alkanolamine from cation ion exchange resin with sodium hydroxideCONOCO INC·Filed 1993·Granted Nov 29, 1994·24 cites·19 claims
- 2663US9757677B2Apparatus for in-situ production of low dissolved hydrogen sulfide, degassed, sulfur from Claus sulfur recoveryPHILLIPS 66 CO·Filed 2014·Granted Sep 12, 2017·0 cites·17 claims
- 2760US5336832ARecovery of HF from hydrocarbon streamsCONOCO INC·Filed 1992·Granted Aug 9, 1994·16 cites·26 claims
- 2860US5162084AProcess for monitoring and controlling an alkanolamine reaction processCONOCO INC·Filed 1991·Granted Nov 10, 1992·25 cites·33 claims
- 2960US5045291AReactivation of spent alkanolamineCONOCO INC·Filed 1990·Granted Sep 3, 1991·20 cites·4 claims
- 3059US5063758AApparatus for applying a treatment fluid having pivotal nozzle combsKUESTERS EDUARD MASCHF·Filed 1990·Granted Nov 12, 1991·13 cites·15 claims
- 3158US5130149AProcess for the manufacture of novel coffee flavorantsGIVAUDAN CORP·Filed 1988·Granted Jul 14, 1992·17 cites·15 claims
- 3251US8075866B2Sulfur degassing processKELLER ALFRED E·Filed 2011·Granted Dec 13, 2011·0 cites·5 claims
- 3350US5190662ARemoval of iron sulfide particles from alkanolamine solutionsCONOCO INC·Filed 1991·Granted Mar 2, 1993·17 cites·9 claims
- 3447US5408715AMethod and system for the treatment of webs of textile material by liquids and steamKUESTERS EDUARD MASCHF·Filed 1994·Granted Apr 25, 1995·7 cites·15 claims
- 3547US4015682AProtecting system for roadway adjacent areasKELLER ALFRED·Filed 1975·Granted Apr 5, 1977·13 cites·18 claims
- 3646US9758376B2Process for degassing condensed sulfur from a Claus sulfur recovery systemPHILLIPS 66 CO·Filed 2015·Granted Sep 12, 2017·0 cites·18 claims
- 3746US2002119091A1Apparatus for recovering sulfur from H2S and concurrent production of H2CONOCO INC·Filed 2002·Application pending·0 cites
- 3844US9573081B2Process for degassing condensed sulfur from a claus sulfur recovery systemPHILLIPS 66 CO·Filed 2015·Granted Feb 21, 2017·0 cites·22 claims
- 3944US6314771B1Device for applying a patterning agent to a lineKUESTERS EDUARD MASCHF·Filed 1998·Granted Nov 13, 2001·6 cites·13 claims
- 4044US2010098618A1Sulfur removal from gasesKELLER ALFRED E·Filed 2008·Application pending·0 cites
- 4141US7550033B2Process for removing sulfidesCONOCOPHILLIPS CO·Filed 2002·Granted Jun 23, 2009·1 cites·25 claims
- 4238US4183234AHorizontal applicatorKUSTERS CORP·Filed 1978·Granted Jan 15, 1980·3 cites·14 claims
- 4336US5546679AInstallation for the thermal drying of strips, sheets, etc., of materialWEITMANN & KONRAD FA·Filed 1995·Granted Aug 20, 1996·4 cites·18 claims
- 4431US5048314AApparatus for applying a treatment fluid having a flow homogenizing baffleKUESTERS EDUARD MASCHF·Filed 1990·Granted Sep 17, 1991·2 cites·4 claims
- 4529US5911902AUse of modified fatty amines for preventing low molecular weight by-product deposits on textile materialsCIBA SC HOLDING AG·Filed 1998·Granted Jun 15, 1999·0 cites·11 claims
- 4626US5968205AInstallation and a process for patterning a web of textile materialKUESTERS EDUARD MASCHF·Filed 1995·Granted Oct 19, 1999·1 cites·9 claims
- 4726US4680965AProcess for continuous density measurementWEITMANN & KONRAD FA·Filed 1985·Granted Jul 21, 1987·2 cites·3 claims
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