Ronald J. Hash
18Patents
9h-index
13Co-inventors
69Inventor score
Filing activity: Jan 11, 1988 → Sep 10, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6127976A | Distributed network for multi-lateration with circularly polarized antenna for hemispherical coverage | Physics | 150 | Expired |
| US6170748A | Object identification system employing pulsed magnetic field-stimulated, tag-embedded transponder | Physics | 45 | Expired |
| US6393045B1 | Spread spectrum baseband modulation of magnetic fields for communications and proximity sensing | Physics | 38 | Expired |
| US6853687B2 | Proximity-based magnetic field generator for controlling operation of RF burst-transmitting tags of geolocation system | Physics | 33 | Expired |
| US6812839B1 | Use of rotating magnetic field to enhance communication with RF burst-transmitting tags of object location system | Physics | 27 | Expired |
| US6268723A | Magnetic field emission and differential receiver coil configuration for discriminating response magnetic field from transponder tag | Physics | 27 | Expired |
| US7038625B1 | Array antenna including a monolithic antenna feed assembly and related methods | Electricity | 20 | Expired |
| US7741929B2 | Miniature quadrature hybrid | Electricity | 18 | Active |
| US6349116B1 | Data communication system harnessing frequency shift keyed magnetic field | Physics | 15 | Expired |
| US4823096A | Variable ratio power divider/combiner | Electricity | 9 | Expired |
| US5134400A | Microwave multiplying D/A converter | Electricity | 9 | Expired |
| US6476719B2 | Ultra-sensitive magnetic field receiver capable of operating in high noise environments | Electricity | 8 | Expired |
| US6721369B1 | Composite BPSK/AM-BPSK based spectral suppression of out-of-band energy from saturated RF amplifier | Electricity | 6 | Expired |
| US9413054B2 | Miniature wideband quadrature hybrid | Electricity | 1 | Active |
| US8836430B1 | Wideband distributed amplifier with integral bypass | Electricity | 1 | Active |
| US7385144B2 | Method and apparatus for electrically connecting printed circuit boards or other panels | Emerging Cross-Sectional Technologies | 1 | Active |
| US7746193B2 | Miniature 180 degree hybrid coupler | Electricity | 0 | Active |
| US9634639B2 | Tunable electronic circuit which converts balanced signals to unbalanced signals | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.