Alfred E. Hall
10Patents
6h-index
7Co-inventors
59Inventor score
Filing activity: Sep 25, 1980 → Oct 10, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4703573A | Visual and audible activated work and method of forming same | Physics | 183 | Expired |
| US5538430A | Self-reading child's book | Physics | 88 | Expired |
| US4656469A | Activated work and method of forming same | Human Necessities | 31 | Expired |
| US5820379A | Computerized method of displaying a self-reading child's book | Physics | 15 | Expired |
| US6639875B2 | Time piece with changable color face | Physics | 8 | Expired |
| US6401076B1 | Wide area inventory control system | Physics | 8 | Expired |
| US4350340A | Electronic logic game method and apparatus | Human Necessities | 4 | Expired |
| US4392651A | Electronic logic game | Human Necessities | 2 | Expired |
| US6661348B2 | Apparatus for providing a visual indication of receipt of an electronic message | Physics | 1 | Expired |
| US6633510B1 | Dual time zone time piece | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.