James Crawford
49Patents
20h-index
21Co-inventors
85Inventor score
Filing activity: Jun 17, 1974 → Feb 28, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6781608B1 | Gradual image display | Electricity | 293 | Expired |
| US4634998A | Fast phase-lock frequency synthesizer with variable sampling efficiency | Electricity | 113 | Expired |
| US4810904A | Sample-and-hold phase detector circuit | Electricity | 109 | Expired |
| US6456245B1 | Card-based diversity antenna structure for wireless communications | Electricity | 97 | Expired |
| US6549561B2 | OFDM pilot tone tracking for wireless LAN | Electricity | 94 | Expired |
| US7417991B1 | Network quality estimation | Electricity | 88 | Expired |
| US6633616B2 | OFDM pilot tone tracking for wireless LAN | Electricity | 86 | Expired |
| US6456242B1 | Conformal box antenna | Electricity | 75 | Expired |
| US7366779B1 | Direct file transfer between subscribers of a communications system | Electricity | 68 | Expired |
| US5026595A | Woven gap filler for use in the lay-up of composite plastic structural units | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6438367B1 | Transmission security for wireless communications | Electricity | 37 | Expired |
| US5282227A | Communication signal detection and acquisition | Electricity | 32 | Expired |
| US7546337B1 | Transferring files | Electricity | 30 | Expired |
| US6433742B1 | Diversity antenna structure for wireless communications | Electricity | 30 | Expired |
| US6980147B2 | Channelized analog-to-digital converter | Electricity | 25 | Expired |
| US6879840B2 | Method and apparatus for adaptive QoS-based joint rate and power control algorithm in multi-rate wireless systems | Electricity | 24 | Expired |
| US6549583B2 | Optimum phase error metric for OFDM pilot tone tracking in wireless LAN | Electricity | 24 | Expired |
| US5796783A | Digital transmission system | Electricity | 24 | Expired |
| US7551677B2 | OFDM pilot tone tracking for wireless LAN | Electricity | 23 | Expired |
| US6650616B2 | Transmission security for wireless communications | Electricity | 22 | Expired |
| US7546537B2 | Gradual image display | Electricity | 18 | Active |
| US3949126A | Multifilament composites | Emerging Cross-Sectional Technologies | 18 | Expired |
| US8429231B2 | Voice instant messaging | Electricity | 14 | Active |
| US8041768B2 | Voice instant messaging | Electricity | 14 | Expired |
| US4545429A | Woven ceramic composite heat exchanger | Emerging Cross-Sectional Technologies | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.