G01R 31/085
In power transmission or distribution lines
Official title: {in power transmission or distribution lines, e.g. overhead}
G01R31/085 (In power transmission or distribution lines) appears on 488 US grants and 561 published applications in this corpus.
Search patents in G01R- Granted patents
- 488
- Published applications
- 561
- Assignees
- 285
- Inventors
- 1,260
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 3 |
| 2003 | 5 | 2 |
| 2004 | 6 | 6 |
| 2005 | 5 | 3 |
| 2006 | 2 | 4 |
| 2007 | 3 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 11 |
| 2010 | 1 | 5 |
| 2011 | 6 | 17 |
| 2012 | 3 | 8 |
| 2013 | 13 | 18 |
| 2014 | 12 | 15 |
| 2015 | 9 | 7 |
| 2016 | 12 | 20 |
| 2017 | 20 | 39 |
| 2018 | 16 | 47 |
| 2019 | 38 | 55 |
| 2020 | 43 | 45 |
| 2021 | 53 | 43 |
| 2022 | 45 | 47 |
| 2023 | 38 | 48 |
| 2024 | 44 | 43 |
| 2025 | 36 | 41 |
| 2026 | 19 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Using impedance analysis for fault detection in power delivery systems29 Sep 2026US 12,748,142 B2Cisco Technology, Inc.
- Dynamic line rating (DLR) of overhead transmission lines25 Aug 2026US 12,716,929 B2NEC Corporation
- Methods and systems for detection, location and characterization of signal sources in electrical infrastructure using distributed sensors25 Aug 2026US 12,716,930 B2Dx Tech Pty Ltd
- Infrastructure monitoring and inspection18 Aug 2026US 12,712,343 B2Florida Power & Light Company
- Systems and methods for detecting insulation defects in an underground power cable28 Jul 2026US 12,693,323 B2Remoni A/S
- Apparatus and method for fault positioning in electrical grids8 Oct 2026US 2026/0309763 A1Safegrid Oy
- A method and a fault locator system for determining a location of a fault in a transmission line1 Oct 2026US 2026/0298998 A1Hitachi Energy Ltd
- Detection of electric discharges that precede fires in electrical wiring24 Sep 2026US 2026/0287629 A1Whisker Labs, Inc.
- Using impedance analysis for fault detection in power delivery systems24 Sep 2026US 2026/0287634 A1Cisco Technology, Inc.
- Apparatus, method, and system for detecting fallen power line or for detecting sag in power line10 Sep 2026US 2026/0266886 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Method and apparatus for responding to events affecting communications in a communication network473US 9,769,020 B2AT&T Intellectual Property I, L. P. · 2017
- Method and apparatus for configuring a communication interface315US 10,009,067 B2AT&T Intellectual Property I, L. P. · 2018
- Traveling wave based relay protection191US 7,535,233 B2Cooper Technologies Company · 2009
- Building technical management controller with a two-wire data and power transmission line142US 5,089,974 AMerlin Gerin · 1992
- Method and apparatus for arranging communication sessions in a communication system138US 9,503,189 B2AT&T Intellectual Property I, L. P. · 2016