Johan Hammersberg
9Patents
1h-index
9Co-inventors
40Inventor score
Filing activity: Jun 18, 2004 → Dec 28, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7864992B2 | Fingerprint sensor element | Physics | 58 | Active |
| US11741745B2 | Multicolor illumination in an optical fingerprint sensor for anti-spoofing | Physics | 1 | Active |
| US11749015B2 | Under display terahertz biometric imaging arrangement | Physics | 0 | Active |
| US11995911B2 | Biometric imaging device comprising polarizers | Physics | 0 | Active |
| US11900715B2 | Spoof detection based on specular and diffuse reflections | Electricity | 0 | Active |
| US11922716B2 | Under display passive terahertz biometric imaging device | Physics | 0 | Active |
| US12380308B2 | Enrollment assistance device with electronic label, and manufacturing method | Physics | 0 | Active |
| US11893100B2 | Spoof detection based on specular and diffuse reflections | Electricity | 0 | Active |
| US12008835B2 | Biometric imaging arrangement for infrared imaging comprising a waveguide formed on an image sensor | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.