David Stephenson
9Patents
6h-index
9Co-inventors
56Inventor score
Filing activity: Apr 13, 1995 → Mar 28, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6119000A | Method and apparatus for tracking identity-code changes in a communications system | Electricity | 171 | Expired |
| US5818632A | Multi-element lens system | Physics | 52 | Expired |
| US5884175A | Handover following in a mobile radio system | Electricity | 49 | Expired |
| US6072581A | Geometrically-desensitized interferometer incorporating an optical assembly with high stray-beam management capability | Physics | 26 | Expired |
| US7111282B2 | Instrumenting a software program and collecting data from the instrumented software program by type | Physics | 20 | Expired |
| US6643024B2 | Apparatus and method(s) for reducing the effects of coherent artifacts in an interferometer | Physics | 8 | Expired |
| US8510814B2 | Method and apparatus for network authentication of human interaction and user identity | Physics | 2 | Active |
| US10599231B2 | Tilt and position command system for input peripherals | Physics | 0 | Active |
| US12392200B2 | Fluid operated motor for running casing with bypass for pumping lost circulation material | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.