Inventor · disambiguated record
John E. Hoots
Also filed as: HOOTS JOHN E
66 granted patents·12 pending applications·2,956 citations·filing 1986–2019
99Inventor score
Top patents by PatentIndex Score
78 records- 0198US5171450AMonitoring and dosage control of tagged polymers in cooling water systemsNALCO CHEMICAL CO·Filed 1991·Granted Dec 15, 1992·172 cites·11 claims
- 0297US5411889ARegulating water treatment agent dosage based on operational system stressesNALCO CHEMICAL CO·Filed 1994·Granted May 2, 1995·165 cites·16 claims
- 0397US4801388AModified acrylamide polymers used as scale inhibitorsNALCO CHEMICAL CO·Filed 1986·Granted Jan 31, 1989·117 cites·9 claims
- 0497US4783314AFluorescent tracers - chemical treatment monitorsNALCO CHEMICAL CO·Filed 1987·Granted Nov 8, 1988·227 cites·18 claims
- 0596US7448255B2Very high-temperature fluorescent tracer and automation for boiler water applicationsNALCO CO·Filed 2006·Granted Nov 11, 2008·40 cites·6 claims
- 0696US4992380AContinuous on-stream monitoring of cooling tower waterNALCO CHEMICAL CO·Filed 1988·Granted Feb 12, 1991·148 cites·20 claims
- 0795US4929425ACooling water corrosion inhibition methodNALCO CHEMICAL CO·Filed 1988·Granted May 29, 1990·68 cites·12 claims
- 0895US4898686AZinc stabilization with modified acrylamide based polymers and corrosion inhibition derived therefromNALCO CHEMICAL CO·Filed 1987·Granted Feb 6, 1990·65 cites·9 claims
- 0994US7060136B1Method of monitoring membrane cleaning processesNALCO CO·Filed 2002·Granted Jun 13, 2006·52 cites·20 claims
- 1093US4923634ACooling water corrosion inhibition methodNALCO CHEMICAL CO·Filed 1988·Granted May 8, 1990·59 cites·9 claims
- 1193US4752443ACooling water corrosion inhibition methodNALCO CHEMICAL CO·Filed 1986·Granted Jun 21, 1988·67 cites·6 claims
- 1292US6730227B2Method of monitoring membrane separation processesNALCO CO·Filed 2002·Granted May 4, 2004·51 cites·29 claims
- 1392US6312644B1Fluorescent monomers and polymers containing same for use in industrial water systemsNALCO CHEMICAL CO·Filed 1999·Granted Nov 6, 2001·95 cites·17 claims
- 1492US5128419ASynthesis of tagged polymers by post-polymerization (trans) amidation reactionNALCO CHEMICAL CO·Filed 1990·Granted Jul 7, 1992·76 cites·15 claims
- 1591US8945371B2Device and methods of using a piezoelectric microbalance sensorECOLAB USA INC·Filed 2013·Granted Feb 3, 2015·13 cites·15 claims
- 1691US6369894B1Modular fluorometerNALCO CHEMICAL CO·Filed 2000·Granted Apr 9, 2002·67 cites·14 claims
- 1791US6255118B1Method for using an all solid-state fluorometer in industrial water system applicationsNALCO CHEMICAL CO·Filed 1998·Granted Jul 3, 2001·132 cites·3 claims
- 1891US5435969AMonitoring water treatment agent in-system concentration and regulating dosageNALCO CHEMICAL CO·Filed 1994·Granted Jul 25, 1995·95 cites·18 claims
- 1991US5041386AConcentration cycles, percent life holding time and continuous treatment concentration monitoring in boiler systems by inert tracersNALCO CHEMICAL CO·Filed 1988·Granted Aug 20, 1991·62 cites·11 claims
- 2091US5035806AScaling salt threshold inhibition and dispersion with hydrophilic/hydrophobic polymersNALCO CHEMICAL CO·Filed 1990·Granted Jul 30, 1991·45 cites·8 claims
- 2189US7169236B2Method of monitoring membrane cleaning processesNALCO CO·Filed 2003·Granted Jan 30, 2007·51 cites·14 claims
- 2289US5416323ALeak detection and responsive treatment in industrial water processesNALCO CHEMICAL CO·Filed 1993·Granted May 16, 1995·83 cites·20 claims
- 2388US6838001B2Method of monitoring membrane separation processesNALCO CO·Filed 2003·Granted Jan 4, 2005·41 cites·21 claims
- 2488US6280635B1Autocycle control of cooling water systemsNALCO CHEMICAL CO·Filed 2000·Granted Aug 28, 2001·45 cites·1 claims
- 2587US6838002B2Method of monitoring membrane separation processesNALCO CO·Filed 2003·Granted Jan 4, 2005·34 cites·26 claims
- 2687US6315909B1Use of control matrix for cooling water systems controlNALCO CHEMICAL CO·Filed 2000·Granted Nov 13, 2001·37 cites·1 claims
- 2786US6566139B2Method of enhancing the fluorescent signal of a fluorescent oxygen scavengerONDEO NALCO CO·Filed 2002·Granted May 20, 2003·27 cites·3 claims
- 2886US4966711ATransition metals as treatment chemical tracersNALCO CHEMICAL CO·Filed 1989·Granted Oct 30, 1990·46 cites·28 claims
- 2985US6436711B1Fluorometric control of aromatic oxygen scavengers in a boiler systemNALCO CHEMICAL CO·Filed 2000·Granted Aug 20, 2002·26 cites·4 claims
- 3083US6821428B1Method of monitoring membrane separation processesNALCO CO·Filed 2002·Granted Nov 23, 2004·31 cites·11 claims
- 3183US5702684AMethod of use of compositions of biocides and fluorescent indicators to control microbial growthNALCO CHEMICAL CO·Filed 1995·Granted Dec 30, 1997·67 cites·18 claims
- 3283US5389548AMonitoring and in-system concentration control of polyelectrolytes using fluorochromatic dyesNALCO CHEMICAL CO·Filed 1994·Granted Feb 14, 1995·63 cites·20 claims
- 3382US9932255B2Metal silicate and organic deposit inhibitor/dispersant for thermal recovery operations of hydrocarbon fuelsECOLAB USA INC·Filed 2016·Granted Apr 3, 2018·2 cites·16 claims
- 3481US4919821AModified maleic anhydride polymers and the like for use as scale inhibitorsNALCO CHEMICAL CO·Filed 1988·Granted Apr 24, 1990·47 cites·6 claims
- 3580US9404067B2Fluoro-inorganics for inhibiting or removing silica or metal silicate depositsECOLAB USA INC·Filed 2014·Granted Aug 2, 2016·3 cites·18 claims
- 3679US5278074AMethod of monitoring and controlling corrosion inhibitor dosage in aqueous systemsNALCO CHEMICAL CO·Filed 1992·Granted Jan 11, 1994·52 cites·22 claims
- 3778US5277135AControlling concentration of chemical treatment for flue gas reduction of the oxides of nitrogenNALCO CHEMICAL CO·Filed 1992·Granted Jan 11, 1994·38 cites·8 claims
- 3877US5006311AMonitoring performance of a treating agent added to a body of waterNALCO CHEMICAL CO·Filed 1990·Granted Apr 9, 1991·45 cites·8 claims
- 3977US4756881AComposition of corrosion inhibitors for cooling water systems using chemically modified acrylamide or methacrylamide polymersNALCO CHEMICAL CO·Filed 1986·Granted Jul 12, 1988·22 cites·9 claims
- 4076US5260386ASynthesis of tagged polymers by post-polymerization (trans) amidation reactionNALCO CHEMICAL CO·Filed 1993·Granted Nov 9, 1993·23 cites·20 claims
- 4175US7220382B2Use of disulfonated anthracenes as inert fluorescent tracersNALCO CO·Filed 2003·Granted May 22, 2007·17 cites·1 claims
- 4275US5304800ALeak detection and responsive treatment in industrial water processesNALCO CHEMICAL CO·Filed 1992·Granted Apr 19, 1994·33 cites·22 claims
- 4373US5658798ADetection of process components in food process streams by fluorescenceNALCO CHEMICAL CO·Filed 1996·Granted Aug 19, 1997·51 cites·29 claims
- 4472US6966213B2Rapid method for detecting leaks of hydraulic fluids in production plantsNALCO CO·Filed 2004·Granted Nov 22, 2005·19 cites·18 claims
- 4570US5922606AFluorometric method for increasing the efficiency of the rinsing and water recovery process in the manufacture of semiconductor chipsNALCO CHEMICAL CO·Filed 1997·Granted Jul 13, 1999·33 cites·9 claims
- 4668US9128010B2Device and methods of using a piezoelectric microbalance sensorECOLAB USA INC·Filed 2013·Granted Sep 8, 2015·1 cites·14 claims
- 4766US5200106ACompositions comprising transition metals for treating and monitoring liquid systemsNALCO CHEMICAL CO·Filed 1990·Granted Apr 6, 1993·27 cites·28 claims
- 4865US5216086ASynthesis of tagged polymers by post-polymerization (trans)amidation reactionNALCO CHEMICAL CO·Filed 1992·Granted Jun 1, 1993·13 cites·20 claims
- 4964US11125690B2Corrosion inhibitors and kinetic hydrate inhibitorsECOLAB USA INC·Filed 2019·Granted Sep 21, 2021·0 cites·20 claims
- 5061US6214627B1Rapid colorimetric method for measuring polymers in aqueous systemsNALCO CHEMICAL CO·Filed 1999·Granted Apr 10, 2001·23 cites·20 claims
Showing the top 50 of 78 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →