John E. Hoots
66Patents
28h-index
70Co-inventors
91Inventor score
Filing activity: May 9, 1986 → Nov 5, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4783314A | Fluorescent tracers - chemical treatment monitors | Emerging Cross-Sectional Technologies | 133 | Expired |
| US5411889A | Regulating water treatment agent dosage based on operational system stresses | Emerging Cross-Sectional Technologies | 108 | Expired |
| US5171450A | Monitoring and dosage control of tagged polymers in cooling water systems | Emerging Cross-Sectional Technologies | 99 | Expired |
| US4992380A | Continuous on-stream monitoring of cooling tower water | Emerging Cross-Sectional Technologies | 82 | Expired |
| US6255118A | Method for using an all solid-state fluorometer in industrial water system applications | Emerging Cross-Sectional Technologies | 77 | Expired |
| US4801388A | Modified acrylamide polymers used as scale inhibitors | Chemistry; Metallurgy | 74 | Expired |
| US5416323A | Leak detection and responsive treatment in industrial water processes | Physics | 56 | Expired |
| US4752443A | Cooling water corrosion inhibition method | Chemistry; Metallurgy | 50 | Expired |
| US4929425A | Cooling water corrosion inhibition method | Chemistry; Metallurgy | 49 | Expired |
| US5435969A | Monitoring water treatment agent in-system concentration and regulating dosage | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5128419A | Synthesis of tagged polymers by post-polymerization (trans) amidation reaction | Chemistry; Metallurgy | 45 | Expired |
| US5702684A | Method of use of compositions of biocides and fluorescent indicators to control microbial growth | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5041386A | Concentration cycles, percent life holding time and continuous treatment concentration monitoring in boiler systems by inert tracers | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4923634A | Cooling water corrosion inhibition method | Chemistry; Metallurgy | 40 | Expired |
| US4898686A | Zinc stabilization with modified acrylamide based polymers and corrosion inhibition derived therefrom | Chemistry; Metallurgy | 39 | Expired |
| US6369894B1 | Modular fluorometer | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5035806A | Scaling salt threshold inhibition and dispersion with hydrophilic/hydrophobic polymers | Chemistry; Metallurgy | 38 | Expired |
| US7169236B2 | Method of monitoring membrane cleaning processes | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6312644A | Fluorescent monomers and polymers containing same for use in industrial water systems | Chemistry; Metallurgy | 36 | Expired |
| US7448255B2 | Very high-temperature fluorescent tracer and automation for boiler water applications | Physics | 35 | Active |
| US5278074A | Method of monitoring and controlling corrosion inhibitor dosage in aqueous systems | Emerging Cross-Sectional Technologies | 35 | Expired |
| US7060136B1 | Method of monitoring membrane cleaning processes | Chemistry; Metallurgy | 34 | Expired |
| US4966711A | Transition metals as treatment chemical tracers | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4919821A | Modified maleic anhydride polymers and the like for use as scale inhibitors | Chemistry; Metallurgy | 30 | Expired |
| US6730227B2 | Method of monitoring membrane separation processes | Chemistry; Metallurgy | 30 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.