David Keller
7Patents
5h-index
9Co-inventors
56Inventor score
Filing activity: Apr 23, 1992 → Jan 13, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5816575A | Expanded blackjack card game and method | Human Necessities | 124 | Expired |
| US6536767B1 | Blackjack royal | Human Necessities | 115 | Expired |
| US5422684A | Protective eyewear with retractable protective shields | Human Necessities | 62 | Expired |
| US6444033B1 | Article comprising a diffuser with flow control features | Emerging Cross-Sectional Technologies | 5 | Expired |
| USD958126S1 | Smart router | General | 5 | Active |
| US6578607B2 | Article comprising a diffuser with flow control features | Emerging Cross-Sectional Technologies | 1 | Expired |
| US11996874B1 | System and method of determining interfering signal parameters | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.