LUMIDIGM, INC.
49Patents
35Active
49Granted
52Portfolio score
Filing activity: Oct 8, 1999 → Oct 29, 2013 · 18 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6816605B2 | Methods and systems for biometric identification of individuals using linear optical spectroscopy | Human Necessities | 167 | Expired |
| US7263213B2 | Methods and systems for estimation of personal characteristics from biometric measurements | Physics | 155 | Expired |
| US6628809B1 | Apparatus and method for identification of individuals by near-infrared spectrum | Physics | 140 | Expired |
| US6560352B2 | Apparatus and method of biometric identification or verification of individuals using optical spectroscopy | Physics | 107 | Expired |
| US7147153B2 | Multispectral biometric sensor | Physics | 79 | Expired |
| US7613504B2 | Spectroscopic cross-channel method and apparatus for improved optical measurements of tissue | Human Necessities | 71 | Expired |
| US7620212B1 | Electro-optical sensor | Physics | 69 | Expired |
| US7347365B2 | Combined total-internal-reflectance and tissue imaging systems and methods | Human Necessities | 57 | Expired |
| US7890158B2 | Apparatus and method of biometric determination using specialized optical spectroscopy systems | Human Necessities | 54 | Active |
| US7545963B2 | Texture-biometrics sensor | Physics | 49 | Active |
| US8229185B2 | Hygienic biometric sensors | Physics | 48 | Active |
| US7539330B2 | Multispectral liveness determination | Physics | 46 | Expired |
| US7627151B2 | Systems and methods for improved biometric feature definition | Physics | 45 | Expired |
| US7819311B2 | Multispectral biometric sensor | Physics | 39 | Active |
| US7386152B2 | Noninvasive alcohol sensor | Physics | 39 | Expired |
| US7804984B2 | Spatial-spectral fingerprint spoof detection | Physics | 39 | Active |
| US7668350B2 | Comparative texture analysis of tissue for biometric spoof detection | Physics | 37 | Active |
| US7735729B2 | Biometric sensor | Physics | 35 | Active |
| US7751594B2 | White-light spectral biometric sensors | Physics | 34 | Active |
| US7460696B2 | Multispectral imaging biometrics | Physics | 34 | Expired |
| US7801339B2 | Biometrics with spatiospectral spoof detection | Physics | 34 | Active |
| US7394919B2 | Multispectral biometric imaging | Physics | 33 | Expired |
| US7835554B2 | Multispectral imaging biometrics | Physics | 30 | Active |
| US7831072B2 | Multispectral imaging biometrics | Physics | 30 | Active |
| US8285010B2 | Biometrics based on locally consistent features | Physics | 29 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.