John E. Hayes
41Patents
12h-index
31Co-inventors
81Inventor score
Filing activity: May 11, 1978 → Apr 29, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4241093A | Food supplement from vegetable pulp and method of preparing same | Human Necessities | 38 | Expired |
| US6297640A | Transfer switch position sensing using coil control contacts | Electricity | 34 | Expired |
| US7179882B2 | Low viscosity polymer polyols | Chemistry; Metallurgy | 31 | Expired |
| US7977501B2 | Polyether carbonate polyols made via double metal cyanide (DMC) catalysis | Chemistry; Metallurgy | 28 | Active |
| US5854386A | Stabilizers for polymer polyols | Chemistry; Metallurgy | 27 | Expired |
| US5488085A | Semi-batch process for producing polymer polyols | Chemistry; Metallurgy | 22 | Expired |
| US6077978A | Direct polyoxyalkylation of glycerine with double metal cyanide catalysis | Chemistry; Metallurgy | 22 | Expired |
| US5358984A | Polymer polyol dispersants from polymers containing anhydride groups | Chemistry; Metallurgy | 17 | Expired |
| US5021506A | Polyol polyacrylate dispersants | Chemistry; Metallurgy | 14 | Expired |
| US8134022B2 | Polyether carbonate polyols made via double metal cyanide (DMC) catalysis | Chemistry; Metallurgy | 14 | Active |
| US5990232A | Stabilizers for polymer polyols | Chemistry; Metallurgy | 14 | Expired |
| US5059641A | Epoxy modified polyols as dispersants for high styrene, high solids content polymer polyols | Chemistry; Metallurgy | 12 | Expired |
| US5250581A | Polymer polyols containing halogenated aromatic monomers | Chemistry; Metallurgy | 12 | Expired |
| US5321077A | Polymer polyol composition containing a grafted polyol-polyacrylate dispersant | Chemistry; Metallurgy | 11 | Expired |
| US5070141A | Polyacrylate graft-polyol dispersants | Chemistry; Metallurgy | 10 | Expired |
| US5844070A | Process for rapid activation of double metal cyanide catalysts | Chemistry; Metallurgy | 9 | Expired |
| US4837247A | Stable polymer polyols in base polyols with molecular weight greater than 4000 using high molecular weight dispersants | Chemistry; Metallurgy | 6 | Expired |
| US4721733A | Polymer polyol dispersion from .alpha.,.beta. ethylenically unsaturated dicarboxylic acid anhydrides | Chemistry; Metallurgy | 5 | Expired |
| US4837246A | High molecular weight dispersants for polymer polyols | Chemistry; Metallurgy | 5 | Expired |
| US5194493A | Polymer polyol composition containing a grafted polyol-polyacrylate dispersant | Chemistry; Metallurgy | 5 | Expired |
| US5478638A | Reinforced conveyor belt comprising a multi-layer structure with at least one intermediate fabric layer containing spaced reinforcing steel rods in the weft of the fabric layer | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5359019A | Use of polyethylenically unsaturated monomers in polymers polyol dispersants | Chemistry; Metallurgy | 5 | Expired |
| US8470927B2 | Process for production of polymer polyols | Chemistry; Metallurgy | 3 | Active |
| US9250274B2 | Power analysis module for monitoring an electrical power source | Emerging Cross-Sectional Technologies | 3 | Active |
| US8877863B2 | Process for production of polymer polyols | Chemistry; Metallurgy | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.