Ensign Holdings, LLC
7Patents
3Active
7Granted
39Portfolio score
Filing activity: Jan 10, 2001 → Sep 21, 2009 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7796013B2 | Device using histological and physiological biometric marker for authentication and activation | Physics | 316 | Active |
| US7536557B2 | Method for biometric authentication through layering biometric traits | Physics | 106 | Expired |
| US7133792B2 | Method and apparatus for calibration over time of histological and physiological biometric markers for authentication | Physics | 97 | Expired |
| US8049597B1 | Systems and methods for securely monitoring an individual | Electricity | 33 | Active |
| US7948361B2 | Obtaining biometric identification using a direct electrical contact | Physics | 32 | Expired |
| US7441123B2 | Method and apparatus for characterizing and estimating the parameters of histological and physiological biometric markers for authentication | Physics | 30 | Expired |
| US8150108B2 | Systems and methods of identification based on biometric parameters | Physics | 23 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.