Douglas G. Schaefer
6Patents
3h-index
30Co-inventors
53Inventor score
Filing activity: May 1, 1998 → Oct 10, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD522701S1 | Tank for a floor care appliance | General | 7 | Expired |
| US7152757B2 | Can and bottle dispenser | Physics | 7 | Expired |
| US8469230B2 | Product delivery and discharge system for a vending machine | Physics | 4 | Active |
| USD434507S | Medication dispensing spool | General | 1 | Expired |
| USD520693S1 | Tool caddy | General | 0 | Expired |
| USD523600S1 | Tank for a floor care appliance | General | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.