David Johnson
23Patents
5h-index
28Co-inventors
69Inventor score
Filing activity: May 5, 1978 → Dec 1, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US10446006B1 | Pet abandonment alert device | Physics | 26 | Active |
| US4153327A | Connector for telephone cords | Electricity | 25 | Expired |
| US8312199B2 | High current multi-port USB hub | Physics | 24 | Active |
| US8909842B2 | High current multi-port USB hub | Physics | 18 | Active |
| US4453062A | Pushbutton switch and integral lamp for telephone dials | Electricity | 9 | Expired |
| US9501380B2 | Remote monitoring system for handheld electronic devices | Physics | 4 | Active |
| US10698546B1 | Detection of a protective cover film on a capacitive touch screen | Physics | 4 | Active |
| US9558390B2 | High-resolution electric field sensor in cover glass | Electricity | 2 | Active |
| US11162699B1 | Generating screens for display by HVAC controller using templates | Physics | 2 | Active |
| US10969913B2 | Detection of protective cover film on a capacitive touch screen | Physics | 2 | Active |
| US9817740B2 | Remote monitoring system for handheld electronic devices | Physics | 1 | Active |
| US11294516B2 | Detection of a protective cover film on a capacitive touch screen | Physics | 1 | Active |
| US9552117B2 | Capacitive touch panel with increased scan frequency using dynamic phase compensation | Physics | 1 | Active |
| USD440004S | Reflected-light table lamp | General | 1 | Expired |
| US4527856A | Modular telephone jack | Electricity | 1 | Expired |
| US10578476B2 | Non-contact level sensing for low dielectric constant inks | Performing Operations; Transporting | 0 | Active |
| US11537245B2 | Detection of a protective cover film on a capacitive touch screen | Physics | 0 | Active |
| US10268864B2 | High-resolution electric field sensor in cover glass | Electricity | 0 | Active |
| US10907852B2 | Remote sensor with improved occupancy sensing | Emerging Cross-Sectional Technologies | 0 | Active |
| US11875002B2 | Detection of a protective cover film on a capacitive touch screen | Physics | 0 | Active |
| US10285498B2 | Power access door assembly | Fixed Constructions | 0 | Active |
| US12341362B1 | Adaptive laptop computer charging system | Electricity | 0 | Active |
| US10254884B2 | Apparatus for piezoelectric force detection | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.