Stephan Appelt
13Patents
5h-index
24Co-inventors
66Inventor score
Filing activity: Mar 28, 1997 → Dec 21, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6426058B1 | Enhancement of NMR and MRI in the presence of hyperpolarized noble gases | Emerging Cross-Sectional Technologies | 47 | Expired |
| US6818202B2 | Enhancement of NMR and MRI in the presence of hyperpolarized noble gases | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7541806B2 | Method for molecule examination by NMR spectroscopy | Physics | 12 | Active |
| US7385395B2 | Apparatus for preparing a solution of a hyperpolarized noble gas for NMR and MRI analysis | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6666047B1 | High pressure polarizer for hyperpolarizing the nuclear spin of noble gases | Physics | 8 | Expired |
| US7495435B2 | Method for the hyperpolarisation of atomic nuclei and device for implementing the method | Human Necessities | 4 | Expired |
| US6589793B1 | Measurement device for the measurement of the absolute polarisation of alkali metal atoms | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7221448B1 | Test cell for a noble gas polarizer | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8248068B2 | Hyperpolarization of lithium and other nuclei | Physics | 1 | Active |
| US10670670B2 | High-quality coil | Physics | 0 | Active |
| US7557574B2 | Imaging method based on fractal surface-filling or space-filling curves | Physics | 0 | Expired |
| US10707637B2 | CW maser with electromagnetic resonant circuit | Electricity | 0 | Active |
| US10551331B2 | Measuring apparatus for weak electromagnetic signals from a sample at low frequencies, in addition to a method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.