Donald Evans
7Patents
7h-index
9Co-inventors
48Inventor score
Filing activity: Apr 30, 1998 → Mar 29, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7045975B2 | Apparatus and methods for providing emergency safety lighting | Electricity | 84 | Expired |
| US6206947A | Process for making an animal litter comprising gypsum, aluminum sulfate and urea | Human Necessities | 40 | Expired |
| US6986589B2 | Apparatus and methods for providing an emergency lighting augmentation system | Emerging Cross-Sectional Technologies | 23 | Expired |
| US7355349B2 | Apparatus and methods for providing emergency safety lighting | Electricity | 16 | Expired |
| US7452099B2 | Portable light device | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6752515B2 | Apparatus and methods for providing emergency lighting | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6029603A | Animal litter comprising gypsum and aluminum sulfate and processes of making same | Human Necessities | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.