G01S 5/02521
Using a radio-map
Official title: {using a radio-map}
G01S5/02521 (Using a radio-map) appears on 1,438 US grants and 1,657 published applications in this corpus.
Search patents in G01S- Granted patents
- 1,438
- Published applications
- 1,657
- Assignees
- 582
- Inventors
- 2,563
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 13 | 0 |
| 2001 | 17 | 2 |
| 2002 | 10 | 12 |
| 2003 | 5 | 8 |
| 2004 | 8 | 20 |
| 2005 | 3 | 30 |
| 2006 | 16 | 27 |
| 2007 | 20 | 27 |
| 2008 | 23 | 48 |
| 2009 | 11 | 40 |
| 2010 | 32 | 43 |
| 2011 | 36 | 55 |
| 2012 | 55 | 67 |
| 2013 | 70 | 109 |
| 2014 | 76 | 113 |
| 2015 | 106 | 110 |
| 2016 | 103 | 123 |
| 2017 | 112 | 99 |
| 2018 | 113 | 116 |
| 2019 | 111 | 91 |
| 2020 | 102 | 110 |
| 2021 | 68 | 99 |
| 2022 | 84 | 69 |
| 2023 | 72 | 80 |
| 2024 | 63 | 81 |
| 2025 | 59 | 42 |
| 2026 | 44 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- In-building localization using device radio frequency fingerprints29 Sep 2026US 12,750,813 B1Amazon Technologies, Inc.
- Automated synchronization of locations of movable items25 Aug 2026US 12,716,980 B2Sap SE
- Real-time locating system18 Aug 2026US 12,710,508 B2Midmark RTLS Solutions, Inc.
- Method for constructing indoor map and related apparatus14 Jul 2026US 12,681,128 B2Huawei Technologies Co., Ltd.
- Limited anchor beacon set for local location determination on portable communication devices14 Jul 2026US 12,681,130 B1Relay, Inc.
- Methods for positioning in low-power reduced capability user equipment1 Oct 2026US 2026/0304369 A1Samsung Electronics Co., Ltd.
- Systems and methods for providing a geo-targeted invitation1 Oct 2026US 2026/0304376 A1Capital One Services, LLC
- Communication method and communication apparatus17 Sep 2026US 2026/0281959 A1Huawei Technologies Co., Ltd.
- Wireless Anchors for Asset Tracking27 Aug 2026US 2026/0252831 A1Chorusview, Inc.
- Wireless location learning27 Aug 2026US 2026/0253724 A1Hill-Rom Services, Inc.
Most cited
By later US patents
- Internet distributed real-time wireless location database804US 6,456,852 B2Motorola, Inc. · 2002
- Position detection and location tracking in a wireless network488US 6,674,403 B2Newbury Networks, Inc. · 2004
- Method and apparatus for tracking and locating personnel441US 5,977,913 ADominion Wireless · 1999
- Applications processor including a database system, for use in a wireless location system435US 7,271,765 B2TruePosition, Inc. · 2007
- Calibration for wireless location system379US 6,184,829 B2TruePosition, Inc. · 2001