Ralph E. Hurd
19Patents
8h-index
12Co-inventors
69Inventor score
Filing activity: Nov 25, 1988 → Dec 19, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6242915A | Field-frequency lock system for magnetic resonance system | Physics | 76 | Expired |
| US6069478A | Magnetic resonance spectroscopic imaging having reduced parasitic side band signals | Physics | 28 | Expired |
| US5657757A | Interleaved MR spectroscopy and imaging with dynamically changing acquisition parameters | Physics | 26 | Expired |
| US6987997B1 | Method and apparatus for improved metabolite signal separation in MR spectroscopy | Emerging Cross-Sectional Technologies | 23 | Expired |
| US7184813B1 | Method and apparatus for improved metabolite signal separation in MR spectroscopy | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5111819A | NMR imaging of metabolites using a multiple quantum excitation sequence | Physics | 18 | Expired |
| US7772844B2 | System and method for tissue specific MR imaging of metabolites using spectral-spatially formed stimulated echo | Physics | 11 | Active |
| US5077524A | Gradient enhanced NMR correlation spectroscopy | Physics | 9 | Expired |
| US6104191A | Quantitative in vivo spectroscopy using oversampling, waterline referencing, and prior knowledge fitting | Physics | 7 | Expired |
| US8933697B2 | Measurement of chemical equilibrium ratio using a magnetic resonance spectroscopy system | Physics | 4 | Active |
| US5168229A | Multidimensional NMR spectroscopy using switched acquisition time gradients for multiple coherence transfer pathway detection | Physics | 4 | Expired |
| US5804966A | Volume spectroscopy having image artifact reduction | Physics | 3 | Expired |
| US7709266B2 | Fast metabolic imaging of systems with sparse spectra using spiral CSI | Emerging Cross-Sectional Technologies | 3 | Active |
| US6137290A | Magnetic resonance spectroscopic imaging having reduced chemical shift error | Physics | 3 | Expired |
| US5262723A | Method and apparatus for obtaining pure-absorption two-dimensional lineshape data for multidimensional NMR spectroscopy using switched acquisition time gradients | Physics | 2 | Expired |
| US7742800B2 | Methods and systems for detection and monitoring of neurodegenerative diseases using magnetic resonance spectroscopy | Emerging Cross-Sectional Technologies | 0 | Active |
| US6979999B2 | Method and system of mapping oxygen concentration across a region-of-interest | Physics | 0 | Expired |
| US8812076B2 | Proton decoupled hyperpolarized magnetic resonance imaging | Physics | 0 | Active |
| US9116218B2 | System and method for tissue specific MR imaging of metabolites using spectral-spatially formed stimulated echo | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.