David J. Witchell
5Patents
3h-index
8Co-inventors
42Inventor score
Filing activity: Mar 7, 2014 → Mar 18, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8977389B2 | Method, system and apparatus for dispensing products for a personal care service, instructing on providing a personal care treatment service, and selecting a personal care service | Physics | 66 | Active |
| US10231531B2 | System, method and device for analysis of hair and skin and providing formulated hair and skin products | Physics | 11 | Active |
| US9961984B2 | Method, system and apparatus for dispensing products for a personal care service, instructing on providing a personal care treatment service, and selecting a personal care service | Physics | 8 | Active |
| US11006734B2 | System, method and device for analysis of hair and skin and providing formulated hair and skin products | Physics | 0 | Active |
| US11103049B2 | Method, system and apparatus for dispensing products for a personal care service, instructing on providing a personal care treatment service, and selecting a personal care service | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.