David Smith
24Patents
9h-index
33Co-inventors
75Inventor score
Filing activity: Mar 2, 1979 → Nov 9, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8123999B2 | Smoothing method for layered deposition modeling | Performing Operations; Transporting | 51 | Expired |
| US4506595A | Modular wall and ceiling system | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4417658A | Self-sealing sterilization bag | Performing Operations; Transporting | 24 | Expired |
| US5080760A | Pressurized forming board | Textiles; Paper | 19 | Expired |
| US4393563A | Cold forced sintered powder metal annular bearing ring blanks | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4251273A | Method of forming valve lifters | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5011577A | Pressure control forming section | Textiles; Paper | 16 | Expired |
| US5562882A | Sterile liquid barrier transfer coupling | Human Necessities | 12 | Expired |
| US7485066B2 | Geared torque converter with multi-plate clutches and planetary gearset | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US10781868B2 | Controllable one-way clutch | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9841064B2 | Reduced drag clutch plate | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9494201B2 | Double clutch with nested levers | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10737567B2 | Hybrid module | Emerging Cross-Sectional Technologies | 1 | Active |
| US10487885B2 | Reduced drag clutch plate | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7913585B2 | Annular ring and annular ring assembly for controllable positioning on a pilot tube | Emerging Cross-Sectional Technologies | 1 | Active |
| US9951845B2 | Transmission with dual input and gear ratio multiplication | Emerging Cross-Sectional Technologies | 1 | Active |
| US8051969B2 | All-wheel drive (AWD) coupling with a variable travel ratio and wear compensation | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9587727B2 | Transmission with dual input and output shafts | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9476462B2 | Clutch with wire pivot ring having straight sections | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9657784B2 | Double clutch mounting assembly | Emerging Cross-Sectional Technologies | 0 | Active |
| US9677625B2 | Concentric slave cylinder including one-way clutch | Emerging Cross-Sectional Technologies | 0 | Active |
| US10024369B2 | Clutch disc with axially expanded spline teeth | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10145425B2 | Clutch carrier assembly | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11490355B2 | Signal geolocation system and method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.