Inventor · disambiguated record
Henry A. Pfeffer
Also filed as: PFEFFER HENRY · PFEFFER HENRY A · PFEFFER III HENRY A
20 granted patents·6 pending applications·378 citations·filing 1980–2015
96Inventor score
Top patents by PatentIndex Score
26 records- 0193US9018142B2Oil-field biocide method utilizing a peracidROVISON JR JOHN M·Filed 2009·Granted Apr 28, 2015·26 cites·11 claims
- 0289US7998446B2Flue gas desulfurization process utilizing hydrogen peroxideFMC CORP·Filed 2008·Granted Aug 16, 2011·11 cites·21 claims
- 0387US4966762AProcess for manufacturing a soda ash peroxygen carrierFMC CORP·Filed 1988·Granted Oct 30, 1990·42 cites·2 claims
- 0484US8575075B2Oil-field viscosity breaker method utilizing a peracidHUANG SHURONG·Filed 2010·Granted Nov 5, 2013·11 cites·8 claims
- 0584US8147785B2Combustion flue gas NOx treatmentPFEFFER HENRY A·Filed 2010·Granted Apr 3, 2012·6 cites·18 claims
- 0683US8877149B2Combustion flue gas NOx treatmentPFEFFER HENRY A·Filed 2012·Granted Nov 4, 2014·5 cites·5 claims
- 0783US4654204AProduction of sodium bicarbonate by reversion of soda-type feed saltINTERMOUNTAIN RES & DEV CORP·Filed 1985·Granted Mar 31, 1987·35 cites·28 claims
- 0881US4652054ASolution mining of trona or nahcolite ore with electrodialytically-produced aqueous sodium hydroxideINTERMOUNTAIN RES & DEV CORP·Filed 1985·Granted Mar 24, 1987·65 cites·15 claims
- 0976US5662840AProcess for making gel microbeadsFMC CORP·Filed 1994·Granted Sep 2, 1997·37 cites·18 claims
- 1074US7947745B1Reducing the viscosity of an aqueous fluidFRITZ IND INC·Filed 2007·Granted May 24, 2011·5 cites·15 claims
- 1174US6444130B1Process for rendering waste from electric furnace production of phosphorus non-hazardousFMC PROPERTIES LLC·Filed 2000·Granted Sep 3, 2002·23 cites·27 claims
- 1274US5045296ASodium carbonate perhydrate processFMC CORP·Filed 1991·Granted Sep 3, 1991·26 cites·12 claims
- 1373US8486366B2Activation of reactive compound with catalystPFEFFER HENRY A·Filed 2010·Granted Jul 16, 2013·5 cites·20 claims
- 1461US4970058ASoda ash peroxygen carrierFMC CORP·Filed 1988·Granted Nov 13, 1990·22 cites·2 claims
- 1557US2015141301A1Peracetic acid oil-field biocide and methodPEROXYCHEM LLC·Filed 2015·Application pending·0 cites
- 1655US6268191B1Enzyme immobilization by imbibing an enzyme solution into dehydrated hydrocolloid gel beadsFiled 1999·Granted Jul 31, 2001·14 cites·18 claims
- 1754US2015218437A1Peracetic acid oil-field biocide and methodPEROXYCHEM LLC·Filed 2015·Application pending·0 cites
- 1853US4781899APurification of crystallized solids made via continuous crystallizationINTERMOUNTAIN RES & DEV CORP·Filed 1984·Granted Nov 1, 1988·15 cites·19 claims
- 1948US4282359APurification of cyanuric acidFMC CORP·Filed 1980·Granted Aug 4, 1981·2 cites·14 claims
- 2046US5364605ARecovery of cyanide from precious metal tailingsFMC CORP·Filed 1991·Granted Nov 15, 1994·17 cites·15 claims
- 2146US2009043123A1Dilute Stabilized Peracetic Acid Production and Treatment ProcessFMC CORP·Filed 2008·Application pending·0 cites
- 2243US4462794AMethod of operating a rotary calciner retrofitted to coal-firingINTERMOUNTAIN RESEARCH & DEV·Filed 1982·Granted Jul 31, 1984·9 cites·3 claims
- 2343US2006233695A1Process for the production of hydrogen peroxide from hydrogen and oxygenFMC CORP·Filed 2006·Application pending·0 cites
- 2442US2011014106A1COMBUSTION FLUE GAS SOx TREATMENT VIA DRY SORBENT INJECTIONFMC CORP·Filed 2010·Application pending·0 cites
- 2539US4294962AContinuous process for the manufacture of cyanuric acidFMC CORP·Filed 1980·Granted Oct 13, 1981·2 cites·15 claims
- 2639US2002068339A1Microbead immobilization of enzymesFiled 2001·Application pending·0 cites
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