Douglas H. Smith
17Patents
10h-index
36Co-inventors
72Inventor score
Filing activity: Feb 24, 1975 → Mar 16, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5951015A | Interactive arcade game apparatus | Human Necessities | 62 | Expired |
| US5483843A | Transport apparatus | Physics | 61 | Expired |
| US5483075A | Rotary scanning apparatus | Physics | 49 | Expired |
| US6501382B1 | Bearing with data storage device | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5799924A | Replicated-in-place internal viscous shear damper for machine structures and components | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6457869B1 | Wheel mounting with axle-mounted sensor | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5893648A | Combined bearing and sensor assembly | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5270839A | Dual imaging station photoprint scanner | Electricity | 12 | Expired |
| US6443622B1 | Spindle and component assembly with formed spindle end portion | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US3986011A | Printer-plotter system | Physics | 11 | Expired |
| US6640438B2 | Process and machine for uniting rotatable machine components | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7045287B2 | Method for contacting fluid components with moieties on a surface | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5739896A | Method and apparatus for digitally printing and developing images onto photosensitive material | Electricity | 6 | Expired |
| US6688773B2 | Deformable spindle end portion | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6702474B2 | Component assembly with formed spindle end portion | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10955004B2 | Wire-formed bearing cage | Emerging Cross-Sectional Technologies | 0 | Active |
| US12039863B2 | Train detection and alert system | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.