Christopher Patrick
38Patents
12h-index
40Co-inventors
81Inventor score
Filing activity: Dec 21, 1999 → Jul 25, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6861980B1 | Data messaging efficiency for an assisted wireless position determination system | Physics | 215 | Expired |
| US6903684B1 | Method and apparatus for optimizing GPS-based position location in presence of time varying frequency error | Physics | 151 | Expired |
| US6522871B1 | Method and apparatus for compensating local oscillator frequency error through environmental control | Electricity | 99 | Expired |
| US8139685B2 | Systems, methods, and apparatus for frequency control | Electricity | 48 | Active |
| US7764726B2 | Systems, methods, and apparatus for jammer rejection | Electricity | 42 | Active |
| US7039418B2 | Position determination in a wireless communication system with detection and compensation for repeaters | Electricity | 39 | Expired |
| US7647055B2 | System and method for integration of wireless computer network in position determining technology | Electricity | 35 | Active |
| US7016688B2 | Forward link repeater delay watermarking system | Electricity | 30 | Expired |
| US6928275B1 | Method and apparatus for compensating local oscillator frequency error | Electricity | 30 | Expired |
| US6961367B2 | Forward link repeater frequency watermarking scheme | Physics | 28 | Expired |
| US6480529B1 | Programmable matched filter searcher for multiple pilot searching | Electricity | 19 | Expired |
| US6873910B2 | Procedure for searching for position determination signals using a plurality of search modes | Physics | 14 | Expired |
| US7136659B2 | Update of base station identifiers based on overhead visit | Electricity | 12 | Expired |
| US7170447B2 | Method and apparatus for processing navigation data in position determination | Physics | 10 | Expired |
| US7446706B2 | Method and apparatus for processing navigation data in position determination | Physics | 8 | Active |
| US8031113B2 | System and method to obtain signal acquisition assistance data | Physics | 7 | Expired |
| US7096132B2 | Procedure for estimating a parameter of a local maxima or minima of a function | Electricity | 6 | Expired |
| US7995538B2 | Method and apparatus for throttling access to a shared resource | Electricity | 6 | Active |
| US6580746B2 | System and method for acquiring a received signal in a spread spectrum device | Electricity | 5 | Expired |
| US6700922B2 | System and method for acquiring a received signal in a spread spectrum device | Electricity | 4 | Expired |
| US8254512B2 | Method and apparatus for increasing coherent integration length while receiving a positioning signal | Physics | 4 | Active |
| US7738531B2 | Method and apparatus for reducing code phase search space | Physics | 3 | Active |
| US8279910B2 | Method and apparatus for code space search in a receiver | Electricity | 3 | Active |
| US9020539B2 | Method and apparatus for calculating a position estimate of a mobile station using network information | Electricity | 3 | Active |
| US7649860B2 | Buffer-based GPS and CDMA pilot searcher | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.