David Rowntree
14Patents
5h-index
7Co-inventors
55Inventor score
Filing activity: Mar 4, 2004 → Dec 1, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7370387B2 | Hand-holdable vacuum cleaners | Human Necessities | 198 | Active |
| US8028373B2 | Vacuum cleaners | Human Necessities | 63 | Active |
| US8918952B2 | Vacuum cleaner | Human Necessities | 48 | Active |
| USRE42873E1 | Hand-holdable vacuum cleaners | General | 6 | Active |
| USRE43804E1 | Hand-holdable vacuum cleaners | General | 5 | Active |
| US9962046B2 | Vacuum cleaning appliance | Human Necessities | 4 | Active |
| US8032984B2 | Vacuum cleaner filter cleaning mechanisms | Performing Operations; Transporting | 4 | Active |
| US9039844B2 | Steam cleaning apparatus | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9717390B2 | Steam cleaning apparatus | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8123916B2 | Apparatus for generating gas by electrolysis of a liquid | Emerging Cross-Sectional Technologies | 3 | Active |
| US7638021B2 | Apparatus for generating gas by electrolysis of a liquid | Chemistry; Metallurgy | 2 | Expired |
| US10092147B2 | Vacuum cleaning device | Human Necessities | 1 | Active |
| US8101877B2 | Rotating dual switching mechanism | Electricity | 1 | Active |
| US9861241B2 | Vacuum cleaning device | Human Necessities | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.