G01S 15/74
Systems using reradiation of acoustic waves
Official title: Systems using reradiation of acoustic waves, e.g. IFF, i.e. identification of friend or foe
G01S15/74 (Systems using reradiation of acoustic waves) appears on 194 US grants and 175 published applications in this corpus.
Search patents in G01S- Granted patents
- 194
- Published applications
- 175
- Assignees
- 156
- Inventors
- 434
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 3 |
| 2004 | 5 | 1 |
| 2005 | 2 | 5 |
| 2006 | 1 | 4 |
| 2007 | 5 | 5 |
| 2008 | 4 | 10 |
| 2009 | 6 | 7 |
| 2010 | 3 | 2 |
| 2011 | 6 | 5 |
| 2012 | 1 | 3 |
| 2013 | 5 | 5 |
| 2014 | 4 | 6 |
| 2015 | 6 | 9 |
| 2016 | 6 | 9 |
| 2017 | 9 | 6 |
| 2018 | 6 | 11 |
| 2019 | 9 | 14 |
| 2020 | 15 | 7 |
| 2021 | 13 | 13 |
| 2022 | 6 | 9 |
| 2023 | 11 | 18 |
| 2024 | 12 | 8 |
| 2025 | 5 | 11 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for underwater distance determination10 Mar 2026US 12,571,912 B2Airmar Technology Corporation
- System and method for determining a distance between networked electronic devices each comprising a loudspeaker and a microphone12 Aug 2025US 12,386,024 B2Axis AB
- Ultrasonic device-to-device communication for wearable devices29 Jul 2025US 12,373,156 B2Google Inc.
- Wireless earphone, mobile phone and sonic ranging method11 Feb 2025US 12,225,340 B2Luxshare Electronic Technology (Kunshan) Ltd.
- Method and device for measuring distance, and storage medium4 Feb 2025US 12,216,204 B2Beijing Xiaomi Mobile Software Co., Ltd.
- System and Method for Underwater Distance Determination2 Jul 2026US 2026/0186134 A1Airmar Technology Corporation
- Detection Network Based On Long Range Sensors Utilizing Vibration Or Acoustic Signals18 Jun 2026US 2026/0169121 A1Google Inc.
- Multi-channel sub-bottom profiler (sbp) acquisition system11 Jun 2026US 2026/0160889 A1Fnv IP B.V.
- Location information determining method and electronic device25 Dec 2025US 2025/0389809 A1Huawei Technologies Co., Ltd.
- Acoustic navigational aid system and method4 Dec 2025US 2025/0368304 A1Deepwater Buoyancy, Inc.
Most cited
By later US patents
- Method and device for sensing of obstacles for an autonomous device281US 5,867,800 AAktiebolaget Electrolux · 1999
- Ultrasonic personnel location identification system193US 4,955,000 ANAC Engineering and Marketing, Inc. · 1990
- Method to use acoustic signals for computer communications162US 7,383,297 B1BeepCard Ltd. · 2008
- System and method for tracking and locating an object141US 5,525,967 A1996
- Rotary encoder for intravascular ultrasound catheter119US 5,485,845 AHewlett-Packard Company · 1996