David G. Stork
80Patents
27h-index
54Co-inventors
91Inventor score
Filing activity: Nov 21, 1990 → Apr 30, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6804659B1 | Content based web advertising | Physics | 438 | Expired |
| US5671282A | Method and apparatus for document verification and tracking | Physics | 428 | Expired |
| US6081261A | Manual entry interactive paper and electronic document handling and processing system | Physics | 269 | Expired |
| US5680481A | Facial feature extraction method and apparatus for a neural network acoustic and visual speech recognition system | Physics | 204 | Expired |
| US5781914A | Converting documents, with links to other electronic information, between hardcopy and electronic formats | Electricity | 180 | Expired |
| US6492981B1 | Calibration of a system for tracking a writing instrument with multiple sensors | Physics | 179 | Expired |
| US6181329A | Method and apparatus for tracking a hand-held writing instrument with multiple sensors that are calibrated by placing the writing instrument in predetermined positions with respect to the writing surface | Physics | 171 | Expired |
| US5337362A | Method and apparatus for placing data onto plain paper | Physics | 161 | Expired |
| US6457026B1 | System to facilitate reading a document | Emerging Cross-Sectional Technologies | 141 | Expired |
| US6201903A | Method and apparatus for pen-based faxing | Electricity | 124 | Expired |
| US5471207A | Compression of palettized images and binarization for bitwise coding of M-ary alphabets therefor | Electricity | 101 | Expired |
| US6574375B1 | Method for detecting inverted text images on a digital scanning device | Physics | 84 | Expired |
| US7124093B1 | Method, system and computer code for content based web advertising | Physics | 80 | Expired |
| US6212296A | Method and apparatus for transforming sensor signals into graphical images | Physics | 72 | Expired |
| US5497236A | Method and apparatus for distortion correction of scanned images | Electricity | 69 | Expired |
| US6104380A | Direct pointing apparatus for digital displays | Physics | 52 | Expired |
| US5771306A | Method and apparatus for extracting speech related facial features for use in speech recognition systems | Physics | 52 | Expired |
| US5621858A | Neural network acoustic and visual speech recognition system training method and apparatus | Physics | 50 | Expired |
| US7395501B2 | Techniques for annotating portions of a document relevant to concepts of interest | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6073118A | Method for performing secure financial transactions using facsimile transmissions | Electricity | 46 | Expired |
| US5710816A | Method and apparatus for ensuring receipt of voicemail messages | Electricity | 39 | Expired |
| US5586215A | Neural network acoustic and visual speech recognition system | Physics | 39 | Expired |
| US5636326A | Method for operating an optimal weight pruning apparatus for designing artificial neural networks | Emerging Cross-Sectional Technologies | 38 | Expired |
| US8531581B2 | Focusing and focus metrics for a plenoptic imaging system | Electricity | 35 | Active |
| US5245696A | Evolution and learning in neural networks: the number and distribution of learning trials affect the rate of evolution | Physics | 32 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.