G01S 3/02
Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic
Official title: using radio waves
G01S3/02 (Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic) appears on 2,856 US grants and 2,443 published applications in this corpus.
Search patents in G01S- Granted patents
- 2,856
- Published applications
- 2,443
- Assignees
- 1,087
- Inventors
- 5,140
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 31 | 0 |
| 1978 | 30 | 0 |
| 1979 | 21 | 0 |
| 1980 | 22 | 0 |
| 1981 | 25 | 0 |
| 1982 | 23 | 0 |
| 1983 | 12 | 0 |
| 1984 | 11 | 0 |
| 1985 | 12 | 0 |
| 1986 | 15 | 0 |
| 1987 | 30 | 0 |
| 1988 | 15 | 0 |
| 1989 | 20 | 0 |
| 1990 | 20 | 0 |
| 1991 | 34 | 0 |
| 1992 | 16 | 0 |
| 1993 | 26 | 0 |
| 1994 | 31 | 0 |
| 1995 | 29 | 0 |
| 1996 | 33 | 0 |
| 1997 | 26 | 0 |
| 1998 | 34 | 0 |
| 1999 | 43 | 0 |
| 2000 | 39 | 0 |
| 2001 | 70 | 5 |
| 2002 | 55 | 36 |
| 2003 | 43 | 60 |
| 2004 | 60 | 51 |
| 2005 | 35 | 44 |
| 2006 | 36 | 63 |
| 2007 | 43 | 55 |
| 2008 | 50 | 55 |
| 2009 | 45 | 67 |
| 2010 | 47 | 69 |
| 2011 | 69 | 73 |
| 2012 | 53 | 88 |
| 2013 | 61 | 68 |
| 2014 | 70 | 92 |
| 2015 | 82 | 79 |
| 2016 | 65 | 108 |
| 2017 | 88 | 89 |
| 2018 | 107 | 139 |
| 2019 | 148 | 147 |
| 2020 | 146 | 158 |
| 2021 | 160 | 198 |
| 2022 | 154 | 152 |
| 2023 | 140 | 182 |
| 2024 | 158 | 156 |
| 2025 | 150 | 124 |
| 2026 | 100 | 85 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01S 3/14Systems for determining direction or deviation from predetermined direction2,138
- G01S 3/04Details802
- G01S 3/74Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system435
- G01S 3/023Monitoring or calibrating241
- G01S 3/72Diversity systems specially adapted for direction-finding56
Recent patents
- Electronic device for determining angle-of-arrival of signal, and method for operating electronic device6 Oct 2026US 12,754,274 B2Samsung Electronics Co., Ltd.
- Method and apparatus for measuring azimuth of base station antenna6 Oct 2026US 12,754,275 B2Huawei Technologies Co., Ltd.
- Media playback based on sensor data29 Sep 2026US 12,750,630 B2Sonos, Inc.
- Enhancing reconfigurable intelligent surface security with angle of arrival and angle of departure based full path integrity validation22 Sep 2026US 12,745,088 B2Dell Products L. P.
- MIMO sensor, method for determining direction-of-arrival approximation degree, and target information matching method15 Sep 2026US 12,736,623 B2Calterah Semiconductor Technology (Shanghai) Co., Ltd.
- Golf club head with improved striking face24 Sep 2026US 2026/0287703 A1Acushnet Company
- Systems, methods and apparatus for determining object position17 Sep 2026US 2026/0276772 A1
- Unmanned vehicle recognition and threat management17 Sep 2026US 2026/0279204 A1Digital Global Systems, Inc.
- System and method for a digitally beamformed phased array feed10 Sep 2026US 2026/0269474 A1BlueHalo, LLC
- Method for electronic beam direction finding in satellite communication hybrid tracking system3 Sep 2026US 2026/0259292 A1Yttek Technology Corp.
Most cited
By later US patents
- Cellular telephone location system707US 5,327,144 AAssociated RT, Inc. · 1994
- Vehicle tracking system518US 5,218,367 ATrackmobile LLC · 1993
- Tracking system and method for tracking a movable object carrying a cellular phone unit, and integrated personal protection system incorporating the tracking system511US 5,515,419 ATrackmobile LLC · 1996
- Calibration and integrated beam control/conditioning system for phased-array antennas506US 6,163,296 ALockheed Martin Corporation · 2000
- Method and apparatus for determining remote object orientation and position407US 4,737,794 AMcDonnell Douglas Corporation · 1988