David B. Cross
37Patents
14h-index
68Co-inventors
84Inventor score
Filing activity: Jul 1, 1986 → Mar 21, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7703128B2 | Digital identity management | Electricity | 91 | Active |
| US8621561B2 | Selective authorization based on authentication input attributes | Electricity | 90 | Active |
| US8059820B2 | Multi-factor content protection | Electricity | 68 | Active |
| US4757431A | Off-axis application of concave spherical reflectors as condensing and collecting optics | Physics | 65 | Expired |
| US7383586B2 | File system operation and digital rights management (DRM) | Physics | 57 | Expired |
| US7181016B2 | Deriving a symmetric key from an asymmetric key for file encryption or decryption | Electricity | 50 | Expired |
| US7376968B2 | BIOS integrated encryption | Physics | 49 | Expired |
| US7382883B2 | Deriving a symmetric key from an asymmetric key for file encryption or decryption | Electricity | 48 | Active |
| US9231964B2 | Vulnerability detection based on aggregated primitives | Physics | 26 | Active |
| US7280956B2 | System, method, and computer program product for file encryption, decryption and transfer | Physics | 25 | Expired |
| US7694121B2 | System and method for protected operating system boot using state validation | Physics | 19 | Active |
| US8127133B2 | Labeling of data objects to apply and enforce policies | Physics | 17 | Active |
| US7991902B2 | Reputation-based authorization decisions | Physics | 16 | Active |
| US8151332B2 | Digital identity management | Electricity | 14 | Active |
| US8045714B2 | Systems and methods for managing multiple keys for file encryption and decryption | Physics | 12 | Active |
| US7434253B2 | User mapping information extension for protocols | Electricity | 11 | Expired |
| US7984488B2 | Credential roaming in electronic computing systems | Electricity | 8 | Active |
| US8798272B2 | Systems and methods for managing multiple keys for file encryption and decryption | Physics | 6 | Active |
| US8875285B2 | Executable code validation in a web browser | Electricity | 5 | Active |
| US8819797B2 | Digital identity management | Electricity | 5 | Active |
| US8615801B2 | Software authorization utilizing software reputation | Physics | 4 | Active |
| US7797311B2 | Organizing scenario-related information and controlling access thereto | Physics | 3 | Active |
| US7325115B2 | Encryption of system paging file | Physics | 3 | Expired |
| US9477832B2 | Digital identity management | Electricity | 3 | Active |
| US8117666B2 | File system operation and digital rights management (DRM) | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.