G01R 31/081
According to type of conductors
Official title: {according to type of conductors}
G01R31/081 (According to type of conductors) appears on 1,251 US grants and 1,374 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,251
- Published applications
- 1,374
- Assignees
- 670
- Inventors
- 3,047
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 10 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 2 |
| 2002 | 11 | 9 |
| 2003 | 13 | 7 |
| 2004 | 15 | 16 |
| 2005 | 12 | 9 |
| 2006 | 13 | 10 |
| 2007 | 10 | 11 |
| 2008 | 8 | 10 |
| 2009 | 6 | 19 |
| 2010 | 7 | 19 |
| 2011 | 17 | 29 |
| 2012 | 14 | 37 |
| 2013 | 22 | 40 |
| 2014 | 34 | 48 |
| 2015 | 34 | 40 |
| 2016 | 52 | 56 |
| 2017 | 49 | 68 |
| 2018 | 42 | 97 |
| 2019 | 82 | 110 |
| 2020 | 95 | 103 |
| 2021 | 128 | 117 |
| 2022 | 99 | 114 |
| 2023 | 96 | 112 |
| 2024 | 107 | 113 |
| 2025 | 88 | 105 |
| 2026 | 54 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method to detect and locate a fault in a shielded conductor6 Oct 2026US 12,754,225 B2GE Aviation Systems LLC
- Method and related device for locating ring power network fault29 Sep 2026US 12,748,141 B2Electric Power Research Institute of Yunnan Power Grid Co., Ltd
- Using impedance analysis for fault detection in power delivery systems29 Sep 2026US 12,748,142 B2Cisco Technology, Inc.
- Method and device for locating fault, computer device, and storage medium22 Sep 2026US 12,742,809 B2Sungrow Power Supply Co., Ltd.
- Systems and methods for fault management and protection22 Sep 2026US 12,742,810 B2ABL IP Holding LLC
- Apparatus and method for fault positioning in electrical grids8 Oct 2026US 2026/0309763 A1Safegrid Oy
- Device for locating electrical faults in underground cables1 Oct 2026US 2026/0298997 A1
- 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
- Electrical grid discrepancy identification1 Oct 2026US 2026/0298999 A1Itron, Inc.
- Detection of electric discharges that precede fires in electrical wiring24 Sep 2026US 2026/0287629 A1Whisker Labs, Inc.
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
- Methods and apparatus for restoring connections in an ATM network273US 6,167,025 ATelcordia Technologies, Inc. · 2000
- System and method for island detection237US 6,850,074 B2Encorp, Inc. · 2005
- Load analysis system for fault detection203US 5,600,526 AThe Texas A&M University System · 1997