Sierra Research Corp
Sierra ResActive Patents
0
Total Holdings
16
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE1616318B1 | Radar system with noise suppression that works with frequen… | Expired / Lapsed | 1968-02-20 | — | 0 | Details |
| US3821523A | Aircraft locating system using agile tacan vortac dme | Expired / Lapsed | 1973-05-07 | 1974-06-28 | 12 | Details |
| US3793635A | Locating vehicles using their voice transmissions | Expired / Lapsed | 1972-12-08 | 1974-02-19 | 8 | Details |
| US3737901A | Redundant aircraft clock synchronization | Expired / Lapsed | 1971-05-03 | 1973-06-05 | 16 | Details |
| US3659085A | Computer determining the location of objects in a coordinat… | Expired / Lapsed | 1970-04-30 | 1972-04-25 | 43 | Details |
| US3594799A | Vor/dme, tacan and vortac having increased capability | Expired / Lapsed | 1969-09-10 | 1971-07-20 | 6 | Details |
| US3579281A | Combining network providing compensated tuning voltage for … | Expired / Lapsed | 1969-06-04 | 1971-05-18 | 10 | Details |
| US3573818A | Follow-the-leader stationkeeper system | Expired / Lapsed | 1968-08-15 | 1971-04-06 | 12 | Details |
| US3564545A | Master function hand-off system | Expired / Lapsed | 1969-05-06 | 1971-02-16 | 0 | Details |
| US3564544A | Multiple mode aircraft clock synchronization | Expired / Lapsed | 1969-01-02 | 1971-02-16 | 0 | Details |
| US3553597A | F.m. to p.a.m. converter | Expired / Lapsed | 1968-02-12 | 1971-01-05 | 0 | Details |
| US3458861A | Cas receive-only clock synchronization | Expired / Lapsed | 1968-03-06 | 1969-07-29 | 0 | Details |
| US3440652A | Hierarchy clock synchronization | Expired / Lapsed | 1967-10-02 | 1969-04-22 | 0 | Details |
| US3336591A | One-way range and azimuth system for stationkeeping | Expired / Lapsed | 1964-12-21 | 1967-08-15 | 2 | Details |
| US3153232A | Station-keeping radar system | Expired / Lapsed | 1960-09-26 | 1964-10-13 | 2 | Details |
| US3108275A | Frequency shift reflection system | Expired / Lapsed | 1960-11-01 | 1963-10-22 | 2 | Details |