G01R 29/085
For detecting presence or location of electric lines or cables
Official title: {for detecting presence or location of electric lines or cables (fault detection G01R31/50; fault location G01R31/08)}
G01R29/085 (For detecting presence or location of electric lines or cables) appears on 83 US grants and 74 published applications in this corpus.
Search patents in G01R- Granted patents
- 83
- Published applications
- 74
- Assignees
- 54
- Inventors
- 169
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 3 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 2 |
| 2007 | 4 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 4 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 4 |
| 2018 | 3 | 3 |
| 2019 | 3 | 5 |
| 2020 | 2 | 6 |
| 2021 | 6 | 5 |
| 2022 | 9 | 8 |
| 2023 | 9 | 3 |
| 2024 | 2 | 2 |
| 2025 | 7 | 7 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy detection warning device1 Sep 2026US 12,724,044 B2Safeguard Equipment, Inc.
- Underground cable path tester12 May 2026US 12,625,197 B2Yongzhou Noyafa Electronic Co., Ltd.
- Smart paint stick devices and methods3 Mar 2026US 12,566,065 B1Seescan, Inc.
- Unmanned aerial vehicle electromagnetic avoidance and utilization system23 Dec 2025US 12,504,454 B2Skydio, Inc.
- Detection device19 Aug 2025US 12,392,807 B2Shenzhen Everbest Machinery Industry Co., Ltd.
- Unmanned Aerial Vehicle Electromagnetic Avoidance And Utilization System9 Jul 2026US 2026/0194564 A1Skydio, Inc.
- Electromagnetic marker devices for buried or hidden use19 Mar 2026US 2026/0079280 A1
- Energy detection warning device25 Dec 2025US 2025/0389758 A1Safeguard Equipment, Inc.
- Automated self testing of an electric field sensing device25 Dec 2025US 2025/0389803 A1Caterpillar Inc.
- Energy detection warning device31 Jul 2025US 2025/0244366 A1Safeguard Equipment, Inc.
Most cited
By later US patents
- Self-calibrating electromagnetic field sensor for locating buried conduits84US 5,043,666 AMetrotech Corporation · 1991
- System for warning aircraft pilot of potential impact with a power line and generating time-to-time impact signal74US 5,252,912 A1993
- Method and installation for the detection of a source generating electro-magnetic oscillations67US 3,940,700 A1976
- Signal generator47US 6,836,231 B2Radiodetection Limited · 2004
- Signal generator46US 6,717,392 B2Radiodetection Limited · 2004