Richard Colvin
5Patents
3h-index
3Co-inventors
50Inventor score
Filing activity: Oct 23, 1991 → Feb 22, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5457904A | Personalized calendar and system for making | Physics | 68 | Expired |
| US5491092A | Sterilizer test method and apparatus | Human Necessities | 35 | Expired |
| US5422276A | Sterilizer test method and apparatus | Human Necessities | 25 | Expired |
| US8151198B2 | System and method for item-based economy in a virtual world | Human Necessities | 3 | Active |
| US9424537B2 | System and method for item-based economy in a virtual world | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.