Daniel Royer
8Patents
6h-index
6Co-inventors
56Inventor score
Filing activity: Oct 24, 1978 → Dec 3, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4954997A | Sensor device using lamb elastic waves for detecting the presence of a liquid at a predetermined level | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4765186A | Liquid level detector by guided elastic waves | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5099454A | Liquid presence detector having a composite waveguide for acoustic waves | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4393268A | Marking system using elastic surface waves | Physics | 12 | Expired |
| US4272676A | Optical-pickup coordinatometer | Physics | 9 | Expired |
| US4209725A | Selenium layer piezoelectric device | Electricity | 7 | Expired |
| US4706046A | Resonator made of nonpiezoelectric material with high quality coefficient | Electricity | 3 | Expired |
| US7663377B2 | System and method for high resolution sensing of capacitance or other reactive impedance change in a large dynamic range | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.