G01R 31/1209
Using acoustic measurements
Official title: {using acoustic measurements (acoustic measurements G01H3/00)}
G01R31/1209 (Using acoustic measurements) appears on 91 US grants and 100 published applications in this corpus.
Search patents in G01R- Granted patents
- 91
- Published applications
- 100
- Assignees
- 81
- Inventors
- 253
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 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 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 3 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 6 |
| 2013 | 3 | 1 |
| 2014 | 3 | 4 |
| 2015 | 0 | 8 |
| 2016 | 6 | 4 |
| 2017 | 5 | 9 |
| 2018 | 5 | 3 |
| 2019 | 9 | 5 |
| 2020 | 7 | 8 |
| 2021 | 4 | 15 |
| 2022 | 9 | 3 |
| 2023 | 10 | 8 |
| 2024 | 6 | 4 |
| 2025 | 4 | 8 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Arc fault detection using ultrasonic acoustic sensors25 Aug 2026US 12,719,256 B2Guardhouse Fire Solutions, LLC
- Condition detecting method and device for surface insulating layer of elevator traction belt26 May 2026US 12,637,327 B2Otis Elevator Company
- System and methods for measuring arc duration5 May 2026US 12,618,903 B2Georgia Tech Research Corporation
- Non-contact live detection apparatus and live detection method21 Apr 2026US 12,608,785 B1State Grid Jiangsu Electric Power Co., Ltd.
- Method for contactless diagnosing power facility using artificial intelligence and signal processing technology and device using the same10 Mar 2026US 12,572,139 B2Codevision Inc.
- Arc detection23 Jul 2026US 2026/0211024 A1Koninklijke Philips N. V.
- System and method of partial discharge detection using ultrasound based on optimized deep learning approach9 Jul 2026US 2026/0194569 A1King Fahd University of Petroleum and Minerals
- Vehicle charging system for an electric vehicle having arc detection28 May 2026US 2026/0149228 A1TE Connectivity Solutions GmbH
- Integrated space charge monitoring for high voltage cables14 May 2026US 2026/0133243 A1Nexans
- Non-contact live detection apparatus and live detection method23 Apr 2026US 2026/0112013 A1State Grid Jiangsu Electric Power Co., Ltd.
Most cited
By later US patents
- Re-locatable partial discharge transducer head28US 7,081,757 B2Siemens Aktiengesellschaft · 2006
- Electrical switching apparatus and method including fault detection employing acoustic signature22US 7,148,696 B2Eaton Corporation · 2006
- Method and system for corona source location by acoustic signal detection21US 4,095,173 AGeneral Electric Company · 1978
- Acoustic optical system for partial discharge detection and location21US 5,530,366 AABB Power T&D Company Inc. · 1996
- Online fiber optic sensor for detecting partial discharge and similar events in large utility station transformers and the like15US 7,071,701 B2New Jersey Institute of Technology · 2006