Stephen T. Walker
10Patents
9h-index
12Co-inventors
69Inventor score
Filing activity: Feb 17, 1989 → Aug 23, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5361359A | System and method for controlling the use of a computer | Physics | 271 | Expired |
| US5557765A | System and method for data recovery | Electricity | 256 | Expired |
| US5745573A | System and method for controlling access to a user secret | Electricity | 189 | Expired |
| US5557346A | System and method for key escrow encryption | Electricity | 177 | Expired |
| US6272632A | System and method for controlling access to a user secret using a key recovery field | Physics | 170 | Expired |
| US5991406A | System and method for data recovery | Electricity | 129 | Expired |
| US4962533A | Data protection for computer systems | Physics | 89 | Expired |
| US5640454A | System and method for access field verification | Electricity | 80 | Expired |
| US5956403A | System and method for access field verification | Electricity | 66 | Expired |
| US8534986B2 | Bundle insertion/extraction system and method | Emerging Cross-Sectional Technologies | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.