Wayne Ernest Conrad
708Patents
56h-index
54Co-inventors
93Inventor score
Filing activity: Sep 25, 1987 → Jul 9, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6782585B1 | Upright vacuum cleaner with cyclonic air flow | Emerging Cross-Sectional Technologies | 267 | Expired |
| US6251296A | Apparatus and method for separating particles from a cyclonic fluid flow | Performing Operations; Transporting | 242 | Expired |
| US8146201B2 | Surface cleaning apparatus | Human Necessities | 239 | Active |
| US6228260A | Apparatus for separating particles from a cyclonic fluid flow | Performing Operations; Transporting | 229 | Expired |
| US6221134A | Apparatus and method for separating particles from a cyclonic fluid flow | Emerging Cross-Sectional Technologies | 221 | Expired |
| US6440197B1 | Apparatus and method separating particles from a cyclonic fluid flow including an apertured particle separation member within a cyclonic flow region | Emerging Cross-Sectional Technologies | 214 | Expired |
| US6231645A | Apparatus and method for separating particles from a cyclonic fluid flow utilizing a movable access member associated with a cyclonic separator | Emerging Cross-Sectional Technologies | 206 | Expired |
| US7887612B2 | Vacuum cleaner with a plurality of cyclonic cleaning stages | Emerging Cross-Sectional Technologies | 187 | Active |
| US6874197B1 | Apparatus and method for separating particles from a cyclonic fluid flow | Emerging Cross-Sectional Technologies | 186 | Expired |
| US7803207B2 | Vacuum cleaner with a divider | Emerging Cross-Sectional Technologies | 168 | Active |
| US7867308B2 | Cyclonic array such as for a vacuum cleaner | Emerging Cross-Sectional Technologies | 164 | Active |
| US8484799B2 | Cyclone chamber and dirt collection assembly for a surface cleaning apparatus | Performing Operations; Transporting | 161 | Active |
| US8151407B2 | Surface cleaning apparatus with enlarged dirt collection chamber | Human Necessities | 154 | Active |
| US6334234B1 | Cleaner head for a vacuum cleaner | Emerging Cross-Sectional Technologies | 136 | Expired |
| US6261379A | Floating agitator housing for a vacuum cleaner head | Human Necessities | 135 | Expired |
| US7776120B2 | Vacuum cleaner with a moveable divider plate | Emerging Cross-Sectional Technologies | 132 | Active |
| US8127398B2 | Convertible surface cleaning apparatus | Human Necessities | 126 | Active |
| US6902596B2 | Air flow passage for a vacuum cleaner | Emerging Cross-Sectional Technologies | 125 | Expired |
| US7449040B2 | Apparatus and method for separating particles from a cyclonic fluid flow | Emerging Cross-Sectional Technologies | 124 | Expired |
| US6156102A | Method and apparatus for recovering water from air | Performing Operations; Transporting | 124 | Expired |
| US6482252B1 | Vacuum cleaner utilizing electrostatic filtration and electrostatic precipitator for use therein | Emerging Cross-Sectional Technologies | 119 | Expired |
| US7329294B2 | Dirt container for a surface cleaning apparatus and method of use | Emerging Cross-Sectional Technologies | 119 | Expired |
| US8607407B2 | Configuration of a hand vacuum cleaner | Human Necessities | 115 | Active |
| US6736873B2 | Air flow passage for a vacuum cleaner | Emerging Cross-Sectional Technologies | 112 | Expired |
| US7941895B2 | Configuration of a cyclone assembly and surface cleaning apparatus having same | Emerging Cross-Sectional Technologies | 99 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.