Stephen H. Smith
27Patents
14h-index
10Co-inventors
78Inventor score
Filing activity: Jan 11, 1980 → Jan 18, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6271790A | Communication system | Electricity | 231 | Expired |
| US5982074A | Axial field motor/generator | Emerging Cross-Sectional Technologies | 106 | Expired |
| US4323849A | Coulometer | Physics | 67 | Expired |
| US6411002B1 | Axial field electric machine | Electricity | 55 | Expired |
| US6163097A | Motor generator including interconnected stators and stator laminations | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4547678A | Hybrid electric vehicle control methods and devices | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5176129A | Self-retaining refractor | Human Necessities | 32 | Expired |
| US6628385B1 | High efficiency, large field scanning microscope | Physics | 28 | Expired |
| US7439702B2 | Application of a switched reluctance motion control system in a chiller system | Emerging Cross-Sectional Technologies | 24 | Active |
| US6181048A | Method for selectively coupling layers of a stator in a motor/generator | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4890689A | Omnidirectional speaker system | Electricity | 19 | Expired |
| US6833916B2 | High efficiency, large field scanning microscope | Physics | 18 | Expired |
| US7202626B2 | Variable speed drive for a chiller system with a switched reluctance motor | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4943053A | Post-operative knee rehabilitative dynamometer | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6204810A | Communications system | Electricity | 12 | Expired |
| US6317097A | Cavity-driven antenna system | Electricity | 10 | Expired |
| US5131408A | Post-operative knee rehabilitative dynamometer | Human Necessities | 10 | Expired |
| US6530421B1 | Counterflow evaporator for refrigerants | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6340950B1 | Disc antenna system | Electricity | 6 | Expired |
| US6393265B1 | Method and apparatus for two dimensional filtering in a communications system using a transformer system | Electricity | 5 | Expired |
| US6295025A | System for measuring and displaying three-dimensional characteristics of electromagnetic waves | Physics | 5 | Expired |
| US6570536B2 | Communications system | Electricity | 4 | Expired |
| US4352152A | High speed non-saturating inverter | Electricity | 4 | Expired |
| US9615776B2 | Signal processing method and apparatus | Physics | 3 | Active |
| US6092589A | Counterflow evaporator for refrigerants | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.