Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5450344 | GPS receivers with data ports for the uploading and downloading of absolute position information | David S. Sprague | 1995-09-12 |
| 5448773 | Long life portable global position system receiver | Paul W. McBurney, David J. Gilman, Lynn Weber | 1995-09-05 |
| 5422814 | Global position system receiver with map coordinate system outputs | David S. Sprague, Anil Tiwari | 1995-06-06 |
| 5422816 | Portable personal navigation tracking system | David S. Sprague | 1995-06-06 |
| D344942 | Hand-held navigational unit | David J. Gilman, Jack P. Hall, David J. Lima, John G. Tang, Lynn Weber +1 more | 1994-03-08 |
| 5272485 | Microstrip antenna with integral low-noise amplifier for use in global positioning system (GPS) receivers | Stanley Leroy Mason, Eugene Tom | 1993-12-21 |
| 5268064 | Copper clad epoxy printed circuit board suitable for microwave frequencies encountered in GPS receivers | Paul K. W. Tom | 1993-12-07 |
| 5239669 | Coupler for eliminating a hardwire connection between a handheld global positioning system (GPS) receiver and a stationary remote antenna | Stanley Leroy Mason, Lynn Weber | 1993-08-24 |
| 5108334 | Dual down conversion GPS receiver with single local oscillator | Ralph E. Eschenbach | 1992-04-28 |