P

Inventor

HOOTS JOHN E

US66 patents
⚠️ This page may combine multiple inventors who share the name “HOOTS JOHN E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NALCO CHEMICAL CO

39 patents
US5171450ADec 15, 1992

Monitoring and dosage control of tagged polymers in cooling water systems

NALCO CHEMICAL CO172 citations99
US5411889AMay 2, 1995

Regulating water treatment agent dosage based on operational system stresses

NALCO CHEMICAL CO165 citations98
US4783314ANov 8, 1988

Fluorescent tracers - chemical treatment monitors

NALCO CHEMICAL CO227 citations97
US6312644B1Nov 6, 2001

Fluorescent monomers and polymers containing same for use in industrial water systems

NALCO CHEMICAL CO95 citations96
US6255118B1Jul 3, 2001

Method for using an all solid-state fluorometer in industrial water system applications

NALCO CHEMICAL CO132 citations96
US5435969AJul 25, 1995

Monitoring water treatment agent in-system concentration and regulating dosage

NALCO CHEMICAL CO95 citations96
US5128419AJul 7, 1992

Synthesis of tagged polymers by post-polymerization (trans) amidation reaction

NALCO CHEMICAL CO76 citations96
US4929425AMay 29, 1990

Cooling water corrosion inhibition method

NALCO CHEMICAL CO68 citations96
US4923634AMay 8, 1990

Cooling water corrosion inhibition method

NALCO CHEMICAL CO59 citations96
US4898686AFeb 6, 1990

Zinc stabilization with modified acrylamide based polymers and corrosion inhibition derived therefrom

NALCO CHEMICAL CO65 citations96
US4801388AJan 31, 1989

Modified acrylamide polymers used as scale inhibitors

NALCO CHEMICAL CO117 citations96
US4752443AJun 21, 1988

Cooling water corrosion inhibition method

NALCO CHEMICAL CO67 citations96
US5389548AFeb 14, 1995

Monitoring and in-system concentration control of polyelectrolytes using fluorochromatic dyes

NALCO CHEMICAL CO63 citations95
US5041386AAug 20, 1991

Concentration cycles, percent life holding time and continuous treatment concentration monitoring in boiler systems by inert tracers

NALCO CHEMICAL CO62 citations95
US4992380AFeb 12, 1991

Continuous on-stream monitoring of cooling tower water

NALCO CHEMICAL CO148 citations95
US6369894B1Apr 9, 2002

Modular fluorometer

NALCO CHEMICAL CO67 citations93
US5702684ADec 30, 1997

Method of use of compositions of biocides and fluorescent indicators to control microbial growth

NALCO CHEMICAL CO67 citations93
US5260386ANov 9, 1993

Synthesis of tagged polymers by post-polymerization (trans) amidation reaction

NALCO CHEMICAL CO23 citations93
US5200106AApr 6, 1993

Compositions comprising transition metals for treating and monitoring liquid systems

NALCO CHEMICAL CO27 citations93
US5132096AJul 21, 1992

Monitoring performance of a water treating agent by measuring and resolving optical voltage analogs

NALCO CHEMICAL CO22 citations93
US5035806AJul 30, 1991

Scaling salt threshold inhibition and dispersion with hydrophilic/hydrophobic polymers

NALCO CHEMICAL CO45 citations93
US5006311AApr 9, 1991

Monitoring performance of a treating agent added to a body of water

NALCO CHEMICAL CO45 citations93
US4966711AOct 30, 1990

Transition metals as treatment chemical tracers

NALCO CHEMICAL CO46 citations93
US6315909B1Nov 13, 2001

Use of control matrix for cooling water systems control

NALCO CHEMICAL CO37 citations92
US6238487B1May 29, 2001

Method for improving the efficiency of semiconductor chip production

NALCO CHEMICAL CO17 citations92
US5922606AJul 13, 1999

Fluorometric method for increasing the efficiency of the rinsing and water recovery process in the manufacture of semiconductor chips

NALCO CHEMICAL CO33 citations92
US5277135AJan 11, 1994

Controlling concentration of chemical treatment for flue gas reduction of the oxides of nitrogen

NALCO CHEMICAL CO38 citations92
US6280635B1Aug 28, 2001

Autocycle control of cooling water systems

NALCO CHEMICAL CO45 citations90
US5416323AMay 16, 1995

Leak detection and responsive treatment in industrial water processes

NALCO CHEMICAL CO83 citations90
US4919821AApr 24, 1990

Modified maleic anhydride polymers and the like for use as scale inhibitors

NALCO CHEMICAL CO47 citations90
US6436711B1Aug 20, 2002

Fluorometric control of aromatic oxygen scavengers in a boiler system

NALCO CHEMICAL CO26 citations89
US6214627B1Apr 10, 2001

Rapid colorimetric method for measuring polymers in aqueous systems

NALCO CHEMICAL CO23 citations89
US5278074AJan 11, 1994

Method of monitoring and controlling corrosion inhibitor dosage in aqueous systems

NALCO CHEMICAL CO52 citations89
US5304800AApr 19, 1994

Leak detection and responsive treatment in industrial water processes

NALCO CHEMICAL CO33 citations88
US4744949AMay 17, 1988

Method for preventing corrosion in aqueous systems

NALCO CHEMICAL CO27 citations88
US5658798AAug 19, 1997

Detection of process components in food process streams by fluorescence

NALCO CHEMICAL CO51 citations86
US4756881AJul 12, 1988

Composition of corrosion inhibitors for cooling water systems using chemically modified acrylamide or methacrylamide polymers

NALCO CHEMICAL CO22 citations82
US4869828ASep 26, 1989

Stabilization of iron in aqueous systems

NALCO CHEMICAL CO22 citations81
US5216086AJun 1, 1993

Synthesis of tagged polymers by post-polymerization (trans)amidation reaction

NALCO CHEMICAL CO13 citations74

NALCO CO

9 patents

ONDEO NALCO CO

1 patent

ECOLAB USA INC

1 patent

Showing the top 50 of 66 patents by PatentIndex Score.