William H. Frederick
7Patents
6h-index
12Co-inventors
52Inventor score
Filing activity: Apr 13, 1996 → Oct 30, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7092772B2 | Home automation system | Physics | 101 | Expired |
| US5544385A | Filter bag mounting assembly for a vacuum cleaner | Human Necessities | 29 | Expired |
| US6006401A | Vacuum cleaner having a handle release thereon | Human Necessities | 28 | Expired |
| USD497692S1 | Sweeper | General | 28 | Expired |
| US5906024A | Nozzle lift and adjustment mechanism for an upright vacuum cleaner | Human Necessities | 16 | Expired |
| USD497459S1 | Sweeper | General | 8 | Expired |
| US5991970A | Upright vacuum cleaner with power switch pedal | Human Necessities | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.