G01S 3/48
The waves arriving at the antennas being continuous or intermittent and the
Official title: the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
G01S3/48 (The waves arriving at the antennas being continuous or intermittent and the) appears on 578 US grants and 537 published applications in this corpus.
Search patents in G01S- Granted patents
- 578
- Published applications
- 537
- Assignees
- 330
- Inventors
- 1,216
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 12 | 0 |
| 2002 | 11 | 3 |
| 2003 | 6 | 16 |
| 2004 | 14 | 3 |
| 2005 | 7 | 7 |
| 2006 | 5 | 8 |
| 2007 | 4 | 8 |
| 2008 | 5 | 10 |
| 2009 | 6 | 10 |
| 2010 | 4 | 12 |
| 2011 | 11 | 15 |
| 2012 | 8 | 12 |
| 2013 | 13 | 10 |
| 2014 | 10 | 14 |
| 2015 | 13 | 11 |
| 2016 | 8 | 13 |
| 2017 | 13 | 24 |
| 2018 | 15 | 30 |
| 2019 | 39 | 39 |
| 2020 | 38 | 44 |
| 2021 | 39 | 64 |
| 2022 | 52 | 50 |
| 2023 | 46 | 47 |
| 2024 | 41 | 36 |
| 2025 | 39 | 39 |
| 2026 | 23 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Systems and methods regarding location and operation of an intangible attribute source using extended reality18 Jun 2026US 2026/0170751 A1Badvr, Inc.
- Rf signal angle of arrival identification with adjustable antenna array7 May 2026US 2026/0126510 A1Viavi Solutions Inc.
Most cited
By later US patents
- Direction finding localization system258US 4,728,959 AVentana Sciences Inc. · 1988
- Apparatus and method for determining angles-of-arrival and polarization of incoming RF signals249US 5,936,575 AScience and Applied Technology, Inc. · 1999
- Modulated backscatter location system188US 6,046,683 ALucent Technologies Inc. · 2000
- True north heading estimator utilizing GPS output information and inertial sensor system output information130US 5,617,317 AHoneywell Inc. · 1997
- Random antenna array interferometer for radio location128US 6,985,107 B2Lotek Wireless Inc. · 2006