G01S 5/0252
Radio frequency fingerprinting
Official title: {Radio frequency fingerprinting}
G01S5/0252 (Radio frequency fingerprinting) appears on 1,935 US grants and 2,228 published applications in this corpus.
Search patents in G01S- Granted patents
- 1,935
- Published applications
- 2,228
- Assignees
- 737
- Inventors
- 3,388
- 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 | 1 | 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 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 16 | 0 |
| 2001 | 19 | 2 |
| 2002 | 13 | 14 |
| 2003 | 5 | 16 |
| 2004 | 9 | 31 |
| 2005 | 6 | 39 |
| 2006 | 20 | 34 |
| 2007 | 29 | 37 |
| 2008 | 29 | 56 |
| 2009 | 14 | 43 |
| 2010 | 37 | 54 |
| 2011 | 38 | 86 |
| 2012 | 71 | 86 |
| 2013 | 93 | 135 |
| 2014 | 97 | 144 |
| 2015 | 144 | 138 |
| 2016 | 129 | 146 |
| 2017 | 147 | 145 |
| 2018 | 161 | 167 |
| 2019 | 155 | 115 |
| 2020 | 138 | 147 |
| 2021 | 102 | 143 |
| 2022 | 121 | 101 |
| 2023 | 97 | 114 |
| 2024 | 86 | 107 |
| 2025 | 91 | 77 |
| 2026 | 58 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Classifying access point beacon communications using machine learning29 Sep 2026US 12,748,174 B2Silicon Laboratories Inc.
- Techniques for improving ranging between electronic devices29 Sep 2026US 12,748,202 B2Apple Inc.
- 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.
- 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
- Multipath time and carrier phase positioning17 Sep 2026US 2026/0281943 A1Telefonaktiebolaget LM Ericsson (publ)
- Communication method and communication apparatus17 Sep 2026US 2026/0281959 A1Huawei Technologies Co., Ltd.
- Wireless Anchors for Asset Tracking27 Aug 2026US 2026/0252831 A1Chorusview, Inc.
Most cited
By later US patents
- Location of a mobile station using a plurality of commercial wireless infrastructures1,007US 6,236,365 B1TracBeam LLC · 2001
- 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
- Locating a mobile station using a plurality of wireless networks and applications therefor472US 6,952,181 B2TracBeam LLC · 2005
- Method and apparatus for tracking and locating personnel441US 5,977,913 ADominion Wireless · 1999