Ray Keech
10Patents
5h-index
5Co-inventors
55Inventor score
Filing activity: Dec 18, 1998 → Apr 13, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6392416B1 | Electrode integrity checking | Physics | 39 | Expired |
| US7039529B2 | Consumption meter | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6269701A | Electromagnetic flowmeter deriving power from signalling loop current | Physics | 7 | Expired |
| US6843137B2 | Flowmeter fault detection | Physics | 6 | Expired |
| US7228748B2 | Electromagnetic flow meter insert | Physics | 5 | Expired |
| US6256590A | Electromagnetic flowmeter | Physics | 4 | Expired |
| US9859952B2 | Methods and apparatus relating to measurement instruments | Electricity | 2 | Active |
| US10119849B2 | Method and system for reproducing an instrument's calibration certificate | Electricity | 0 | Active |
| US10274352B2 | Method and apparatus for interference reduction | Electricity | 0 | Active |
| US10365147B2 | Method and apparatus for electrode impedance measurement | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.