Charles R. Upton
5Patents
3h-index
9Co-inventors
50Inventor score
Filing activity: Oct 30, 1989 → May 15, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5006806A | Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables | Physics | 115 | Expired |
| US5017873A | Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables | Physics | 101 | Expired |
| US5122750A | Methods employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables | Physics | 88 | Expired |
| US10940814B2 | Customizable multifunctional dispenser module | Electricity | 2 | Active |
| US11976969B2 | Gyro stabilized modular laser measurement device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.