David Walker
28Patents
12h-index
48Co-inventors
81Inventor score
Filing activity: Mar 6, 1986 → Dec 10, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6755344B1 | Systems and methods for determining an authorization threshold | Physics | 265 | Expired |
| US4696512A | Motorized recliner chair with release mechanism | Human Necessities | 41 | Expired |
| US5682423A | Electrical power and telephone ringer signal distribution system | Electricity | 37 | Expired |
| US10095549B1 | Ownership transfer account service in a virtual computing environment | Electricity | 37 | Active |
| US6935559B2 | Systems and methods for determining an authorization threshold | Physics | 29 | Expired |
| US8572676B2 | System, method, and device for mediating connections between policy source servers, corporate repositories, and mobile devices | Electricity | 25 | Active |
| US7191941B1 | Systems and methods for determining a need for authorization | Physics | 21 | Expired |
| US10810055B1 | Request simulation for ensuring compliance | Physics | 21 | Active |
| US10223176B1 | Event handler nodes for visual scripting | Physics | 17 | Active |
| US5901112A | Signal energy enhancement for seismic exploration | Physics | 16 | Expired |
| US7769638B1 | Systems and methods for verifying authorization for electronic commerce | Physics | 14 | Active |
| US8565726B2 | System, method and device for mediating connections between policy source servers, corporate repositories, and mobile devices | Electricity | 13 | Active |
| USD779513S1 | Display screen with graphical user interface | General | 10 | Active |
| US10771468B1 | Request filtering and data redaction for access control | Electricity | 9 | Active |
| US10972580B1 | Dynamic metadata encryption | Electricity | 7 | Active |
| US8473351B1 | Systems and methods for verifying authorization | Physics | 6 | Active |
| US5020271A | Watering devices | Human Necessities | 6 | Expired |
| US7182255B2 | Systems and methods for determining an authorization | Physics | 5 | Expired |
| US10481963B1 | Load-balancing for achieving transaction fault tolerance | Electricity | 4 | Active |
| US8935384B2 | Distributed data revocation using data commands | Electricity | 3 | Active |
| USD496192S1 | Remote control console | General | 3 | Expired |
| US11394636B1 | Network connection path obfuscation using global access points | Electricity | 1 | Active |
| US10922152B2 | Event handler nodes for visual scripting | Physics | 0 | Active |
| US8528042B2 | System, method, and device for mediating connections between policy source servers, corporate repositories, and mobile devices | General | 0 | Revoked |
| US10740151B1 | Parallelized forensic analysis using cloud-based servers | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.