David Wells
11Patents
7h-index
2Co-inventors
56Inventor score
Filing activity: Nov 30, 1983 → Apr 23, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5298967A | Measurement of concentrations of dissolved solvent | Physics | 66 | Expired |
| US5835211A | Single-particle optical sensor with improved sensitivity and dynamic size range | Physics | 25 | Expired |
| US5410403A | Particle measuring system with pump adapted to maintain constant flow for different pressures and viscosities | Physics | 23 | Expired |
| US5332512A | Isokinetic diluter for particle measuring instrument | Physics | 13 | Expired |
| US6565140B2 | Sun visor with tinted insert | Performing Operations; Transporting | 11 | Expired |
| USD364742S | Combination tomahawk and broom handle | General | 10 | Expired |
| US5344241A | Bearing assembly with internal seal | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US4919229A | Stable working platform | Fixed Constructions | 7 | Expired |
| US5435655A | Bearing assembly with slotted closure cup | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| USD285648S | Combined gutter support and jointing bracket | General | 3 | Expired |
| US8721490B2 | Planetary drive system | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.