G01S 17/74
Systems using reradiation of electromagnetic waves other than radio waves
Official title: Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe
G01S17/74 (Systems using reradiation of electromagnetic waves other than radio waves) appears on 327 US grants and 273 published applications in this corpus.
Search patents in G01S- Granted patents
- 327
- Published applications
- 273
- Assignees
- 230
- Inventors
- 681
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 1 |
| 2002 | 8 | 3 |
| 2003 | 5 | 4 |
| 2004 | 4 | 8 |
| 2005 | 3 | 8 |
| 2006 | 7 | 9 |
| 2007 | 5 | 9 |
| 2008 | 7 | 6 |
| 2009 | 5 | 12 |
| 2010 | 8 | 6 |
| 2011 | 8 | 11 |
| 2012 | 6 | 9 |
| 2013 | 8 | 12 |
| 2014 | 14 | 14 |
| 2015 | 12 | 16 |
| 2016 | 13 | 12 |
| 2017 | 11 | 9 |
| 2018 | 15 | 15 |
| 2019 | 6 | 13 |
| 2020 | 8 | 21 |
| 2021 | 15 | 22 |
| 2022 | 13 | 9 |
| 2023 | 20 | 15 |
| 2024 | 12 | 15 |
| 2025 | 10 | 8 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical package for a LIDAR sensor system and LIDAR sensor system19 May 2026US 12,631,731 B2OSRAM GmbH
- System, method, and apparatus for detecting IR radiation in a marker system13 Jan 2026US 12,520,896 B2Arcachon Holdings LLC
- System for location and charging of wireless power receivers2 Dec 2025US 12,489,320 B2Wi-Charge Ltd.
- Electromagnetic wave imaging method, apparatus, and system11 Nov 2025US 12,468,029 B2Huawei Technologies Co., Ltd.
- Polarimetric camera11 Nov 2025US 12,469,243 B2The Regents of the University of California
- Techniques for compensating for errors in an optical air data system10 Sep 2026US 2026/0266996 A1Honeywell International Inc.
- Retroreflectors providing information encoded in reflected non-visible laser while retaining visible light safety properties20 Aug 2026US 2026/0243931 A1Lighthouse Technology Group Inc.
- Retroreflector identification with lidar9 Jul 2026US 2026/0194657 A1Valeo Schalter und Sensoren GmbH
- Method, transceiver station, identification means and system for identifying an object14 May 2026US 2026/0133284 A1Deutsches Zentrum für Luft- und Raumfahrt e. V.
- System, Method, and Apparatus for Detecting IR Radiation in a Marker System23 Apr 2026US 2026/0108005 A1Arcachon Holdings LLC
Most cited
By later US patents
- System for determining the spatial position and orientation of a body356US 6,061,644 ANorthern Digital Inc. · 2000
- Buoyant device for bi-directional acousto-optic signal transfer across the air-water interface227US 6,813,218 B1The United States of America as represented by the Secretary of the Navy · 2004
- Non-synchronous object identification system197US 4,325,146 A1982
- Method and device for association of anonymous reflectors to detected angle positions169US 6,259,979 B1Apogeum AB · 2001
- Vehicle guidance system130US 4,918,607 ACaterpillar Industrial Inc. · 1990