Keith E. Stephens
17Patents
8h-index
22Co-inventors
72Inventor score
Filing activity: May 5, 1986 → Oct 31, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6759454B2 | Polymer modified bitumen compositions | Chemistry; Metallurgy | 47 | Expired |
| US9010058B2 | Shingle with transition device for impact resistance | Fixed Constructions | 41 | Active |
| US9457354B2 | System and method for continuous processing of recyclable material | Fixed Constructions | 31 | Active |
| US7402619B2 | Cross-linking compositions for polymer-modified asphalt compositions | Chemistry; Metallurgy | 17 | Expired |
| US7576148B2 | Blown asphalt compositions | Chemistry; Metallurgy | 16 | Active |
| US9493654B2 | Preparation of industrial asphalt | Fixed Constructions | 12 | Active |
| US9115296B2 | Bituminous emulsions | Chemistry; Metallurgy | 9 | Active |
| US7728074B2 | Process for preparing a bituminous binder composition | Chemistry; Metallurgy | 8 | Active |
| US8901211B2 | Preparation of industrial asphalt | Fixed Constructions | 8 | Active |
| US7622519B2 | Bituminous binder composition and process for preparing the same | Chemistry; Metallurgy | 7 | Active |
| US4751147A | Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom | Emerging Cross-Sectional Technologies | 5 | Expired |
| US9187644B2 | Continuous processing of asphalt formulations | Chemistry; Metallurgy | 4 | Active |
| US7592381B2 | Process for preparing a bituminous binder composition | Chemistry; Metallurgy | 3 | Active |
| US4707522A | Low viscosity, semicrystalline chlorinated polyethylene resins and articles formed therefrom | Chemistry; Metallurgy | 3 | Expired |
| US10087920B2 | Compressor bushing | Emerging Cross-Sectional Technologies | 0 | Active |
| US10156233B2 | Dual control valve for reciprocating compressor unloader system | Emerging Cross-Sectional Technologies | 0 | Active |
| US9835147B2 | Dual control valve for reciprocating compressor unloader system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.