G01S
Radio direction-finding
Official title: Radio direction-finding; radio navigation; determining distance or velocity by use of radio waves; locating or presence-detecting by use of the reflection or reradiation of radio waves; analogous arrangements using other waves
G01S (Radio direction-finding) appears on 96,585 US grants and 102,212 published applications in this corpus.
Search patents in G01S- Granted patents
- 96,585
- Published applications
- 102,212
- Assignees
- 17,796
- Inventors
- 135,356
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 505 | 0 |
| 1977 | 507 | 0 |
| 1978 | 491 | 0 |
| 1979 | 365 | 0 |
| 1980 | 504 | 0 |
| 1981 | 368 | 0 |
| 1982 | 368 | 0 |
| 1983 | 267 | 0 |
| 1984 | 306 | 0 |
| 1985 | 369 | 0 |
| 1986 | 419 | 0 |
| 1987 | 583 | 0 |
| 1988 | 433 | 0 |
| 1989 | 563 | 0 |
| 1990 | 598 | 0 |
| 1991 | 616 | 0 |
| 1992 | 678 | 0 |
| 1993 | 704 | 0 |
| 1994 | 773 | 0 |
| 1995 | 722 | 0 |
| 1996 | 903 | 0 |
| 1997 | 792 | 0 |
| 1998 | 988 | 0 |
| 1999 | 1082 | 0 |
| 2000 | 1152 | 0 |
| 2001 | 1210 | 283 |
| 2002 | 1294 | 1154 |
| 2003 | 1251 | 1409 |
| 2004 | 1328 | 1513 |
| 2005 | 1034 | 1743 |
| 2006 | 1253 | 1765 |
| 2007 | 1235 | 1909 |
| 2008 | 1291 | 2308 |
| 2009 | 1498 | 2484 |
| 2010 | 1813 | 2762 |
| 2011 | 1850 | 2595 |
| 2012 | 2217 | 2812 |
| 2013 | 2308 | 3062 |
| 2014 | 2702 | 3392 |
| 2015 | 3096 | 3861 |
| 2016 | 3202 | 4263 |
| 2017 | 3818 | 4841 |
| 2018 | 3979 | 5635 |
| 2019 | 5117 | 6246 |
| 2020 | 5725 | 7303 |
| 2021 | 5285 | 7695 |
| 2022 | 5811 | 7883 |
| 2023 | 6384 | 7525 |
| 2024 | 6329 | 7335 |
| 2025 | 6204 | 6094 |
| 2026 | 4295 | 4340 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- G01S 7/00Details of systems according to groups g01s13/00, g01s15/00, g01s17/0040,123
- G01S 13/00Systems using the reflection or reradiation of radio waves27,482
- G01S 17/00Systems using the reflection or reradiation of electromagnetic waves other than radio22,992
- G01S 5/00Position-fixing by co-ordinating two or more direction or position line determinations18,535
- G01S 19/00Satellite radio beacon positioning systems17,863
- G01S 15/00Systems using the reflection or reradiation of acoustic waves11,511
- G01S 3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic6,691
- G01S 1/00Beacons or beacon systems transmitting signals having a characteristic or characteristics capable3,425
All 11 main groupsShow fewer
- G01S 11/00Systems for determining distance or velocity not using reflection or reradiation3,404
- G01S 2205/00Position-fixing by co-ordinating two or more direction or position line determinationsIndexing code2,334
- G01S 2201/00Indexing scheme relating to beacons or beacon systems transmitting signals capable ofIndexing code362
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Most cited
By later US patents
- Vehicle tracking and security system1,604US 5,223,844 AAuto-Trac, Inc. · 1993
- Intravascular imaging apparatus and methods for use and manufacture1,555US 5,445,155 ASciMed Life Systems, Inc. · 1995
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- Object detection system for vehicle1,327US 7,038,577 B2Donnelly Corporation · 2006
- Intravascular imaging apparatus and methods for use and manufacture1,265US 5,438,997 A1995