William S. Smith
25Patents
14h-index
27Co-inventors
81Inventor score
Filing activity: Jul 14, 1975 → Jun 9, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5283102A | Laminated wood flooring product and wood floor | Emerging Cross-Sectional Technologies | 160 | Expired |
| US5736227A | Laminated wood flooring product and wood floor | Emerging Cross-Sectional Technologies | 152 | Expired |
| US5935668A | Wooden flooring strip with enhanced flexibility and straightness | Emerging Cross-Sectional Technologies | 127 | Expired |
| US6156402A | Wooden flooring strip with enhanced flexibility and straightness | Emerging Cross-Sectional Technologies | 77 | Expired |
| US6164323A | Solenoid valve control system | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6053198A | Solenoid valve control system | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6575917B2 | Protective-sleeve cartridge and stethoscope incorporating same | Human Necessities | 33 | Expired |
| US4059651A | Curable blends of EPDM and polypropylene | Chemistry; Metallurgy | 32 | Expired |
| US4439423A | Chymopapain and method for its use | Human Necessities | 28 | Expired |
| US4719108A | Chymopapain composition and method for its use | Human Necessities | 26 | Expired |
| US5522431A | Solenoid valve control system | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4251646A | Thermoplastic blend of polypropylene, EPM and propylene-ethylene copolymer | Chemistry; Metallurgy | 18 | Expired |
| US4359107A | Shut-off apparatus for pneumatic driven tools | Performing Operations; Transporting | 17 | Expired |
| US4307784A | Shut-off apparatus for pneumatic driven tools | Performing Operations; Transporting | 17 | Expired |
| USD423343S | Pad and pencil assembly | General | 10 | Expired |
| USRE41299E1 | Solenoid valve control system | General | 7 | Expired |
| US7008656B2 | Self-heating meal package and tray | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8578574B1 | Casket enclosure for mausoleum crypt | Human Necessities | 4 | Active |
| US6328130A | Ladder accessories | Fixed Constructions | 3 | Expired |
| US4781220A | Fast response shut-off valve | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5816304A | Apparatus and method for increasing the flexibility of and straightening flooring strips | Fixed Constructions | 3 | Expired |
| US4287692A | Safety apparatus for a mining machine | Fixed Constructions | 2 | Expired |
| US11745703B2 | Assembly for sensor cleaning with solenoid | Physics | 1 | Active |
| US11767929B2 | Assembly for sensor cleaning with solenoid | Physics | 0 | Active |
| US11864893B2 | Oxygen sensor calibration | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.