Robert Andrew Eckel
32Patents
7h-index
16Co-inventors
66Inventor score
Filing activity: Jan 9, 1986 → Mar 8, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5373151A | Optical system including focal plane array compensation technique for focusing and periodically defocusing a beam | Electricity | 36 | Expired |
| US9481197B2 | System and method for credential authentication | Physics | 32 | Active |
| US4771267A | Analog offset compensation technique | Electricity | 24 | Expired |
| US5442176A | Infrared detector array | Electricity | 15 | Expired |
| US10032042B1 | Digital identification enrollment | Electricity | 11 | Active |
| US5953155A | Optical system | Physics | 10 | Expired |
| US10332191B1 | Steganographic-based system and method using digital identification | Electricity | 7 | Active |
| US4701664A | Mercury arc lamp suitable for inclusion in a flow cytometry apparatus | Electricity | 7 | Expired |
| US10157437B2 | System and method for digital watermarking | Physics | 5 | Active |
| US9978112B2 | System and method for digital watermarking | Physics | 5 | Active |
| US10037460B2 | System and method for credential authentication | Physics | 4 | Active |
| US10282802B2 | Digital identification document | Physics | 3 | Active |
| US10311435B2 | System and method for transaction authentication | Physics | 3 | Active |
| US9286508B2 | System and method for creating a virtual backdrop | Physics | 3 | Active |
| US10320778B2 | Digital identification document | Electricity | 2 | Active |
| US10943233B2 | System and method for transaction authentication | Physics | 2 | Active |
| US10678939B2 | Digital identification enrollment | Electricity | 2 | Active |
| US10474891B2 | System and method for credential authentication | Physics | 2 | Active |
| US5790326A | Infrared energy detection system | Physics | 2 | Expired |
| US10692167B2 | System and method for digitally watermarking digital facial portraits | Physics | 1 | Active |
| US10679105B2 | Line segment code for embedding information in an image | Physics | 1 | Active |
| US10249015B2 | System and method for digitally watermarking digital facial portraits | Physics | 1 | Active |
| US10007844B2 | System and method for digitally watermarking digital facial portraits | Electricity | 1 | Active |
| US10957005B2 | System and method for digital watermarking | Physics | 1 | Active |
| US9495605B2 | Method and apparatus for the detection of digital watermarks for instant credential authentication | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.