David L. Epperson
20Patents
6h-index
18Co-inventors
66Inventor score
Filing activity: Sep 26, 1985 → Feb 24, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4696860A | Particulate spacers for inhibiting Newton rings in touch sensitive overlays | Emerging Cross-Sectional Technologies | 64 | Expired |
| US9735588B2 | Power source system with multiple electrical outputs | Physics | 18 | Active |
| US4965421A | Particulate spacers for touch sensitive overlay panel applications | Emerging Cross-Sectional Technologies | 14 | Expired |
| US9766270B2 | Wireless test measurement | Physics | 9 | Active |
| US10352967B2 | Non-contact electrical parameter measurement systems | Physics | 8 | Active |
| US9606146B2 | Wireless rogowski coil system | Physics | 8 | Active |
| US9739801B2 | Analytical gateway device for measurement devices | Electricity | 5 | Active |
| US10095659B2 | Handheld devices, systems, and methods for measuring parameters | Physics | 5 | Active |
| US10591515B2 | Non-contact current measurement system | Physics | 4 | Active |
| US10209271B2 | Handheld measurement system with selectable options | Physics | 2 | Active |
| US9551597B2 | Measurement system with image capture capabilities | Physics | 1 | Active |
| US9377485B2 | Handheld measurement system with selectable options | Physics | 1 | Active |
| US10605832B2 | Sensor subsystems for non-contact voltage measurement devices | Physics | 0 | Active |
| US10473696B2 | Wireless rogowski coil system | Physics | 0 | Active |
| US11125783B2 | Wireless Rogowski coil system | Physics | 0 | Active |
| US9933459B1 | Magnetically coupled ground reference probe | Physics | 0 | Active |
| US10254375B2 | Proving unit for voltage measurement systems | Physics | 0 | Active |
| US11237192B2 | Non-contact current measurement system | Physics | 0 | Active |
| US10359494B2 | Proving unit for non-contact voltage measurement systems | Electricity | 0 | Active |
| US9874547B2 | Wireless combustion/efficiency analyzer | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.