Lloyd Engelbrecht
11Patents
11h-index
3Co-inventors
61Inventor score
Filing activity: Jun 8, 1993 → Aug 29, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5422813A | No-outage GPS/commercial RF positioning system | Physics | 309 | Expired |
| US5510801A | Location determination system and method using television broadcast signals | Physics | 201 | Expired |
| US5604765A | Position enhanced communication system including system for embedding CDMA navigation beacons under the communications signals of a wireless communication system | Electricity | 142 | Expired |
| US6111538A | Cellular positioning system (CPS) | Electricity | 121 | Expired |
| US6148219A | Positioning system for CDMA/PCS communications system | Electricity | 114 | Expired |
| US6169484A | Personal location system | Physics | 85 | Expired |
| USRE38808E1 | Cellular positioning system (CPS) | General | 40 | Expired |
| US6160837A | Method of avoiding near-far interference problems in an array of navigation signal beacons having selected CDMA or GPS-like navigation signals | Electricity | 32 | Expired |
| US6148195A | Phase agile antenna for use in position determination | Electricity | 23 | Expired |
| US5912917A | Digital broadcast system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6850734B1 | Position enhanced communication system including system for embedding CDMA navigation beacons under the communications signals of a wireless communication system | Electricity | 16 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.