| 9922570 | Aircraft navigation performance prediction system | Feb 17, 16 | Mar 20, 18 | GE AVIATION SYSTEMS LLC |
| 9257050 | Airplane position assurance monitor | Dec 09, 13 | Feb 09, 16 | THE BOEING COMPANY |
| 8077089 | Precision geolocation of moving or fixed transmitters using multiple observers | Aug 17, 09 | Dec 13, 11 | Rincon Research Corporation |
| 7808432 | Systems and methods for a high-precision time of arrival ultra-wideband positioning system | Jan 21, 09 | Oct 05, 10 | HONEYWELL INTERNATIONAL INC. |
| 7636620 | Signal distribution device operating in aircraft instrumental landing systems | Dec 09, 04 | Dec 22, 09 | Thales Italia S.p.A. |
| 7206675 | Runway approach using localizer alone | Apr 10, 06 | Apr 17, 07 | Not available |
| 6411890 | Method for guiding aircraft on taxiways | Aug 03, 00 | Jun 25, 02 | HONEYWELL INTERNATIONAL INC. |
| 6348891 | Far field monitor apparatus | Aug 01, 00 | Feb 19, 02 | NEC CORPORATION |
| 6239745 | Satellite landing system having instrument landing system look alike guidance | Jul 30, 99 | May 29, 01 | ROCKWELL COLLINS, INC. |
| 6111543 | Method and device for analysing radio navigation signals | Sep 11, 97 | Aug 29, 00 | Not available |
| 6097338 | Instrument landing system glide path transmitter device | Mar 24, 99 | Aug 01, 00 | Airsys Navigation Systems GmbH |
| 5475393 | Precision landing system | Oct 04, 93 | Dec 12, 95 | Not available |
| 5323165 | Two-frequency transmitting apparatus with tone-modulation phasing for an instrument landing system | Jun 18, 93 | Jun 21, 94 | Alcatel Sel A.G. |
| 5206654 | Passive aircraft monitoring system | May 19, 92 | Apr 27, 93 | Hughes Aircraft Company |
| 5103233 | Radar system with elevation-responsive PRF control, beam multiplex control, and pulse integration control responsive to azimuth angle | Apr 16, 91 | Apr 07, 92 | GENERAL ELECTRIC COMPANY, LOCKHEED MARTIN CORPORATION, |
| 5101207 | MLS-type landing system with centralized means of surveillance | Dec 12, 90 | Mar 31, 92 | THOMSON-CSF |
| 5097266 | MLS-type landing system with centralized microwave generation | Dec 12, 90 | Mar 17, 92 | THOMSON-CSF |
| 4968982 | Aircraft landing system having simplified out-of-coverage indication (OCI) | Jul 10, 89 | Nov 06, 90 | Hazeltine Corporation |
| 4929957 | Method and apparatus for detecting receiver compression in multiple lobe guidance systems | Jul 17, 89 | May 29, 90 | Sundstrand Corporation |
| 4907005 | Radiofrequency power distributor for instrument landing system localizer antenna arrays | May 22, 89 | Mar 06, 90 | Not available |