Robert Evans
10Patents
5h-index
11Co-inventors
63Inventor score
Filing activity: Jan 24, 1973 → Apr 23, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5114681A | Superfusion apparatus | Physics | 31 | Expired |
| USD552141S1 | Digital video recorder device | General | 30 | Expired |
| US4015523A | Method and apparatus for feeding and printing documents | Performing Operations; Transporting | 21 | Expired |
| USD590831S1 | Encryption device | General | 15 | Expired |
| US5394789A | Manually operable device for metering air through a valve system for drawing into, retaining and evacuating material from a chamber | Performing Operations; Transporting | 14 | Expired |
| US4526364A | Sheet feeding mechanism for duplicating machine with duplexing capability | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5485779A | Device for selectively pressurizing or evacuating a chamber with an oscillating air source by metering air through a valve system and a device for drawing into, retaining and evacuating material from a chamber | Performing Operations; Transporting | 2 | Expired |
| US4085362A | Check synchronism | Physics | 2 | Expired |
| USD594891S1 | Digital photography device | General | 1 | Expired |
| USD551273S1 | Digital photography apparatus | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.