John M. Heumann
21Patents
12h-index
22Co-inventors
77Inventor score
Filing activity: Jan 12, 1989 → Mar 7, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5274336A | Capacitively-coupled test probe | Physics | 151 | Expired |
| US6765981B2 | Computed tomography | Emerging Cross-Sectional Technologies | 113 | Expired |
| US6002739A | Computed tomography with iterative reconstruction of thin cross-sectional planes | Emerging Cross-Sectional Technologies | 100 | Expired |
| US5922079A | Automated analysis of a model based diagnostic system | Physics | 88 | Expired |
| US5469064A | Electrical assembly testing using robotic positioning of probes | Physics | 52 | Expired |
| US6201850A | Enhanced thickness calibration and shading correction for automatic X-ray inspection | Physics | 33 | Expired |
| US7099435B2 | Highly constrained tomography for automated inspection of area arrays | Physics | 26 | Expired |
| US5489851A | Identification of pin-open faults by measuring current or voltage change resulting from temperature change | Physics | 23 | Expired |
| US5504432A | System and method for detecting short, opens and connected pins on a printed circuit board using automatic test equipment | Physics | 17 | Expired |
| US5111137A | Method and apparatus for the detection of leakage current | Physics | 15 | Expired |
| US5977775A | System and method for detecting shorts, opens and connected pins on a printed circuit board using automatic equipment | Physics | 13 | Expired |
| US7373332B2 | Methods and apparatus for detecting temporal process variation and for managing and predicting performance of automatic classifiers | Physics | 12 | Expired |
| US7108424B2 | Method and apparatus for calibration of indirect measurement systems | Human Necessities | 10 | Expired |
| US6291978A | System and method for detecting shorts, opens and connected pins on a printed circuit board using automatic test equipment | Physics | 9 | Expired |
| US5392001A | Capacitively-coupled amplifier with improved low frequency response | Electricity | 8 | Expired |
| US4860762A | Dual channel resolver for real time arrythmia analysis | Physics | 8 | Expired |
| US6850589B2 | Tomography of curved surfaces | Physics | 6 | Expired |
| US6051979A | System and method for detecting shorts, opens and connected pins on a printed circuit board using automatic test equipment | Physics | 4 | Expired |
| US7424141B2 | System and method for performing auto-focused tomosynthesis | Physics | 1 | Expired |
| US6191570A | System and method for detecting shorts, opens and connected pins on a printed circuit board using automatic test equipment | Physics | 1 | Expired |
| US7200534B2 | Radiographic imaging systems and methods for designing same | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.