Roy E. Smith
34Patents
9h-index
24Co-inventors
75Inventor score
Filing activity: Jul 28, 1975 → Jun 22, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4049414A | Method and apparatus for splicing optical fibers | Physics | 77 | Expired |
| US3960531A | Method and apparatus for splicing optical fibers | Physics | 49 | Expired |
| US4570544A | Diagonally braced rail truck | Performing Operations; Transporting | 14 | Expired |
| US4737240A | Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol-3-sulfonic acid | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4136828A | Oxide depositing ribbon burner | Chemistry; Metallurgy | 13 | Expired |
| US4285280A | Radial railway truck | Performing Operations; Transporting | 12 | Expired |
| US5731084A | Zero twist yarn having periodic flat spots | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4289075A | Steering articulated car | Performing Operations; Transporting | 11 | Expired |
| US4943261A | Flexible shaft coupling having flexible elements interspersed between alternating attachment wedges | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4194973A | Method of lowering the color of effluent which contains aryl azo- or aryl nitro-containing compounds | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5131332A | Railway truck with steered axles and primary suspension | Performing Operations; Transporting | 9 | Expired |
| US5244928A | Foamable composition and process for making large cell size alkenyl aromatic polymer foam structure with 1,1-difluoroethane | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4050608A | Cross-shaped joint cover member for generally rectangular composite insulating panels forming wall portion of insulated cryogenic liquid container | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5286757A | Foamable composition and process for making large cell size alkenyl aromatic polymer foam structure with 1,1-difluoroethane | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4926756A | Longitudinal steering linkage for truck with interaxle yokes | Performing Operations; Transporting | 7 | Expired |
| US5054705A | Reciprocating strand guide for split strand roving packages | Performing Operations; Transporting | 7 | Expired |
| US4679665A | Brake disc design for wheel mounted discs | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4819566A | Stabilized steerable truck | Performing Operations; Transporting | 6 | Expired |
| US4860666A | Multi-axle, steered articulated railway vehicle with compensation for transitional spirals | Performing Operations; Transporting | 6 | Expired |
| US4542699A | Powered radial truck | Performing Operations; Transporting | 6 | Expired |
| US5756149A | Method and apparatus for lubricating continuous fiber strand winding apparatus | Performing Operations; Transporting | 5 | Expired |
| US5806775A | Self-supporting yarn package | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4542700A | Three axle steered truck | Performing Operations; Transporting | 5 | Expired |
| US5853133A | Apparatus for producing square edged forming packages from a continuous fiber forming process | Performing Operations; Transporting | 4 | Expired |
| US4486727A | Electromagnetic relay | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.