John Richards
9Patents
5h-index
11Co-inventors
60Inventor score
Filing activity: Jan 30, 1981 → Oct 26, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5727165A | Offer matching system having timed match acknowledgment | Physics | 678 | Expired |
| US4388489A | Conversational video system | Electricity | 100 | Expired |
| US4531184A | Conversational video system having contact selection control | Electricity | 69 | Expired |
| US7866319B2 | Respirator exhalation unit | Human Necessities | 15 | Active |
| USD582982S1 | Writing instrument | General | 5 | Expired |
| US6406301B2 | Clock teaching aid | Physics | 4 | Expired |
| US8691295B2 | Dietary supplement for vascular health | Human Necessities | 2 | Active |
| US7887850B2 | Method for reducing pathogens in the gastrointestinal tract of poultry and other food animals | Human Necessities | 2 | Expired |
| US6471517B2 | Reading teaching aid | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.