G01R 31/58
Testing of lines, cables or conductors
Official title: Testing of lines, cables or conductors (testing of electric windings G01R31/72)
G01R31/58 (Testing of lines, cables or conductors) appears on 1,518 US grants and 1,335 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,518
- Published applications
- 1,335
- Assignees
- 919
- Inventors
- 3,326
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 13 | 0 |
| 1978 | 11 | 0 |
| 1979 | 10 | 0 |
| 1980 | 15 | 0 |
| 1981 | 18 | 0 |
| 1982 | 14 | 0 |
| 1983 | 22 | 0 |
| 1984 | 20 | 0 |
| 1985 | 19 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 15 | 0 |
| 1989 | 23 | 0 |
| 1990 | 19 | 0 |
| 1991 | 11 | 0 |
| 1992 | 13 | 0 |
| 1993 | 8 | 0 |
| 1994 | 14 | 0 |
| 1995 | 26 | 0 |
| 1996 | 23 | 0 |
| 1997 | 18 | 0 |
| 1998 | 13 | 0 |
| 1999 | 13 | 0 |
| 2000 | 11 | 0 |
| 2001 | 21 | 6 |
| 2002 | 28 | 13 |
| 2003 | 19 | 25 |
| 2004 | 23 | 31 |
| 2005 | 25 | 28 |
| 2006 | 37 | 15 |
| 2007 | 16 | 8 |
| 2008 | 13 | 25 |
| 2009 | 14 | 29 |
| 2010 | 18 | 34 |
| 2011 | 24 | 35 |
| 2012 | 21 | 42 |
| 2013 | 30 | 63 |
| 2014 | 47 | 51 |
| 2015 | 38 | 79 |
| 2016 | 67 | 97 |
| 2017 | 74 | 61 |
| 2018 | 67 | 69 |
| 2019 | 67 | 84 |
| 2020 | 71 | 68 |
| 2021 | 77 | 75 |
| 2022 | 72 | 77 |
| 2023 | 74 | 73 |
| 2024 | 64 | 85 |
| 2025 | 69 | 103 |
| 2026 | 51 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cable with abnormality sign detection function and wire abnormality sign detection system6 Oct 2026US 12,755,864 B2Autonetworks Technologies, Ltd.
- Computerized simulation validation for full-scale testing22 Sep 2026US 12,742,834 B2Zhejiang Huadian Equipment Testing and Researching Institute Co., LTD.
- Method for detecting impedance of charging cable, electronic device, and power supply device15 Sep 2026US 12,736,566 B2Honor Device Co., Ltd.
- Ribbon cable for detecting a break, connection assembly with composite panel, method for detecting a break, and use of the ribbon cable15 Sep 2026US 12,738,395 B2Saint-Gobain Sekurit France
- Coupler for coupling high-frequency EM energy with cables8 Sep 2026US 12,730,134 B2Connected Intelligence Systems Ltd.
- Device for locating electrical faults in underground cables1 Oct 2026US 2026/0298997 A1
- Comprehensive detection and analysis apparatus for cable terminal of photovoltaic power station1 Oct 2026US 2026/0299049 A1China Railway Seventh Bureau Group Co., Ltd.
- Probe, measuring device, and power line monitoring system1 Oct 2026US 2026/0299050 A1Hydro-Quebec
- Electrical assembly and method1 Oct 2026US 2026/0299051 A1Lear Corporation
- Modular cable24 Sep 2026US 2026/0287679 A1Channel Well Technology Co., Ltd.
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 that provides fault tolerance in a communication network404US 9,615,269 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
- Patching panel scanner271US 5,483,467 ARIT Technologies Ltd. · 1996
- Method and apparatus for transmission line analysis268US 6,934,655 B2Mindspeed Technologies, Inc. · 2005