David W. Riley
30Patents
19h-index
36Co-inventors
81Inventor score
Filing activity: Apr 25, 1975 → Jul 17, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5781438A | Token generation process in an open metering system | Physics | 338 | Expired |
| US5742683A | System and method for managing multiple users with different privileges in an open metering system | Physics | 144 | Expired |
| USD674748S1 | Portable power supply for a mobile device | General | 143 | Active |
| USD709439S1 | Battery case for a mobile device | General | 136 | Active |
| USD728468S1 | Battery case for a mobile device | General | 78 | Active |
| US5625694A | Method of inhibiting token generation in an open metering system | Physics | 67 | Expired |
| US5812945A | Metered payment cellular telephone communication system | Electricity | 63 | Expired |
| US5987441A | Token generation process in an open metering system | Physics | 54 | Expired |
| US6546377B1 | Virtual postage meter with multiple origins of deposit | Physics | 48 | Expired |
| US6151590A | Network open metering system | Physics | 40 | Expired |
| US6098058A | Postage metering system and method for automatic detection of remote postage security devices on a network | Physics | 36 | Expired |
| US6157919A | PC-based open metering system and method | Physics | 35 | Expired |
| US5499374A | Event driven communication network | Electricity | 35 | Expired |
| US5590198A | Open metering system with super password vault access | Physics | 33 | Expired |
| US4529306A | Apparatus and method for polymer melt stream analysis | Physics | 26 | Expired |
| US5497450A | Universal controller interface for barcode printers | Physics | 25 | Expired |
| US5452419A | Serial communication control system between nodes having predetermined intervals for synchronous communications and mediating asynchronous communications for unused time in the predetermined intervals | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6085181A | Postage metering system and method for a stand-alone meter operating as a meter server on a network | Physics | 24 | Expired |
| US6865557B1 | Network open metering system | Physics | 21 | Expired |
| US6619544B2 | System and method for instant online postage metering | Physics | 19 | Expired |
| US7203666B1 | Virtual postage metering system | Physics | 17 | Expired |
| US6260028A | Token generation process in an open metering system | Physics | 7 | Expired |
| US6922678B2 | Virtual postage meter with multiple origins of deposit | Physics | 5 | Expired |
| US6839691B2 | Method for acquiring a customer for online postage metering | Physics | 5 | Expired |
| US7080044B1 | PC-based open metering system and method | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.