G01S 3/325
Automatic tracking systems
Official title: {Automatic tracking systems}
G01S3/325 (Automatic tracking systems) appears on 52 US grants and 25 published applications in this corpus.
Search patents in G01S- Granted patents
- 52
- Published applications
- 25
- Assignees
- 41
- Inventors
- 115
- Latest grant
- 28 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 3 |
| 2020 | 3 | 2 |
| 2021 | 1 | 3 |
| 2022 | 4 | 0 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Control device28 Feb 2023US 11,592,515 B2Mitsubishi Electric Corporation
- Angle of arrival estimation in a radio communications network10 Jan 2023US 11,550,017 B2Telefonaktiebolaget LM Ericsson (publ)
- Method and apparatus for reducing magnetic tracking error1 Nov 2022US 11,486,958 B2Penumbra, Inc.
- Distributed radio signal targeting device2 Aug 2022US 11,402,459 B2
- Method for direction finding of at least one stationary and/or moving transmitter as well as system for direction finding19 Jul 2022US 11,391,808 B2Rohde & Schwarz GmbH & Co.KG
- Tracking receiver, antenna apparatus, and tracking method5 Aug 2021US 2021/0239782 A1Mitsubishi Electric Corporation
- Methods, Systems, and Devices for Determining a Presence of a Motor-Driven Tool Inside a Tool Position Region and/or a Tool Position of the Tool24 Jun 2021US 2021/0187718 A1Andreas Stihl AG & CO.KG
- Asset location using direction finding features25 Feb 2021US 2021/0055366 A1Cypress Semiconductor Corporation
- Distributed radio signal targeting device17 Dec 2020US 2020/0393530 A1Truenorth Rescue Inc.
- Control device25 Jun 2020US 2020/0200853 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- 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
- Radar systems222US 5,926,128 AThe Marconi Company Limited · 1999
- Alarm system for enclosed area152US 5,568,535 ATrackmobile LLC · 1996
- Locator and method for a wireless communication system47US 5,873,048 ALucent Technologies Inc. · 1999