Walter J. Baker
17Patents
12h-index
44Co-inventors
78Inventor score
Filing activity: Mar 12, 1990 → May 24, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5884292A | System for smart card funds refill | Physics | 188 | Expired |
| US5812666A | Cryptographic key management and validation system | Physics | 113 | Expired |
| US5793867A | System and method for disaster recovery in an open metering system | Physics | 79 | Expired |
| US6061671A | System and method for disaster recovery in an open metering system | Physics | 58 | Expired |
| US5067305A | System and method for controlling an apparatus to produce mail pieces in non-standard configurations | Performing Operations; Transporting | 31 | Expired |
| US5621795A | System and method for fault tolerant key management | Electricity | 30 | Expired |
| US5175691A | System and method for controlling an apparatus to produce items in selected configurations | Performing Operations; Transporting | 26 | Expired |
| US5196083A | System and method for producing items in selected configurations | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5680456A | Method of manufacturing generic meters in a key management system | Physics | 18 | Expired |
| US7765161B2 | System and method for providing payment services in electronic commerce | Physics | 17 | Expired |
| US5749078A | Method and apparatus for storage of accounting information in a value dispensing system | Physics | 14 | Expired |
| US5742682A | Method of manufacturing secure boxes in a key management system | Physics | 13 | Expired |
| US6297821A | Mailing machine including an embedded control system having a screen control architecture | Physics | 11 | Expired |
| US5815606A | Method for thresholding a gray scale matrix | Physics | 9 | Expired |
| US7305710B2 | Method for securely loading and executing software in a secure device that cannot retain software after a loss of power | Physics | 5 | Expired |
| US8176567B2 | Apparatus and method to limit access to selected sub-program in a software system | Physics | 1 | Active |
| US9065801B2 | System and method to enable external processing device running a cloud application to control a mail processing machine | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.