William R. Carswell
11Patents
5h-index
10Co-inventors
59Inventor score
Filing activity: May 31, 1978 → Apr 14, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5379875A | Coin discriminator and acceptor arrangement | Physics | 57 | Expired |
| US5248060A | Theft deterrent device for newspaper dispensing machines | Physics | 13 | Expired |
| US4463874A | Vending machine having card moving fingers | Physics | 10 | Expired |
| US4981027A | Three position lock mechanism for a vending machine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4747478A | Coin sorter and totalizer | Physics | 6 | Expired |
| US4592461A | Vending machine with coin sorter and totalizer | Physics | 5 | Expired |
| US4844229A | Price mechanism for coin operated vending machine | Physics | 4 | Expired |
| US4410104A | Vending machine | Physics | 3 | Expired |
| US4445625A | Vending machine having access blocking members | Physics | 1 | Expired |
| US4201283A | Pilferage protection for satellite vending machine having dual pricing capability | Physics | 1 | Expired |
| US4971186A | Price mechanism for coin operated vending machine | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.