Harry G. Derks
15Patents
11h-index
10Co-inventors
69Inventor score
Filing activity: Mar 11, 1976 → Jul 28, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6021119A | Multiple site interactive response system | Electricity | 108 | Expired |
| US5724357A | Remote response system and data transfer protocol | Electricity | 88 | Expired |
| US5379213A | Test scoring system and method | Physics | 58 | Expired |
| USRE35449E | Remote 2-way transmission audience polling and response system | General | 54 | Expired |
| US5093786A | Remote response system | Electricity | 28 | Expired |
| US4048729A | Electrical teaching system | Physics | 23 | Expired |
| US7277671B2 | Wireless response system and method | Electricity | 20 | Expired |
| US6665000B1 | Remote site interactive system | Electricity | 19 | Expired |
| US8310364B2 | Real-time method and system for determining and validating location of a relocated mobile object or person in a tracking environment | Physics | 18 | Active |
| US4392132A | Wireless signaling system | Physics | 18 | Expired |
| US8514071B2 | Real-time method and system for locating a mobile object or person in a tracking environment | Physics | 13 | Active |
| US7599703B2 | Wireless polling system using spread-spectrum communication | Electricity | 7 | Expired |
| US7746820B2 | Response system and method with dynamic personality assignment | Electricity | 4 | Active |
| US7747261B2 | Asynchronous response system with acknowledge | Electricity | 4 | Active |
| US8340059B2 | Response system and method with dynamic personality assignment | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.