H02H 7/26
Sectionalised protection of cable or line systems
Official title: Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured (locating faults in cables G01R31/08)
H02H7/26 (Sectionalised protection of cable or line systems) appears on 1,511 US grants and 1,523 published applications in this corpus.
Search patents in H02H- Granted patents
- 1,511
- Published applications
- 1,523
- Assignees
- 563
- Inventors
- 3,032
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 12 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 11 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 12 | 0 |
| 1989 | 12 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 12 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 20 | 0 |
| 1999 | 18 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 2 |
| 2002 | 14 | 7 |
| 2003 | 17 | 47 |
| 2004 | 18 | 18 |
| 2005 | 21 | 18 |
| 2006 | 25 | 20 |
| 2007 | 12 | 26 |
| 2008 | 14 | 21 |
| 2009 | 21 | 24 |
| 2010 | 17 | 38 |
| 2011 | 26 | 30 |
| 2012 | 23 | 48 |
| 2013 | 31 | 56 |
| 2014 | 50 | 70 |
| 2015 | 44 | 53 |
| 2016 | 57 | 71 |
| 2017 | 61 | 79 |
| 2018 | 66 | 110 |
| 2019 | 106 | 101 |
| 2020 | 103 | 112 |
| 2021 | 117 | 107 |
| 2022 | 111 | 136 |
| 2023 | 106 | 87 |
| 2024 | 90 | 72 |
| 2025 | 76 | 102 |
| 2026 | 52 | 68 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02H 7/261Involving signal transmission between at least two stations619
- H02H 7/268For dc systems270
- H02H 7/30Staggered disconnection201
- H02H 7/28For meshed systems128
- H02H 7/265Making use of travelling wave theory105
- H02H 7/267For parallel lines and wires42
- H02H 7/266Involving switching on a spare supply32
Recent patents
- Power line protection coordination schemes using pivotable multi-fuse assemblies6 Oct 2026US 12,755,920 B2Saudi Arabian Oil Company
- DC fault management in electrical power system6 Oct 2026US 12,756,177 B2Hitachi Energy Ltd
- Secure communication for commissioning and decommissioning circuit breakers and panel system29 Sep 2026US 12,750,674 B2Leviton Manufacturing Co., Inc.
- Bi-directional solid-state DC circuit breaker with breaking speed control15 Sep 2026US 12,738,436 B2Hong Kong Applied Science and Technology Research Institute Company Limited
- Apparatus, system and method of providing a smart powerline event and health monitoring of power distribution systems using surge protection devices8 Sep 2026US 12,730,136 B2Eaton Intelligent Power Limited
- Kickback control methods for a power tool including a force sensor24 Sep 2026US 2026/0291215 A1Milwaukee Electric Tool Corporation
- Insulation monitoring device (imd), system for monitoring insulation and method for monitoring insulation of imd24 Sep 2026US 2026/0291216 A1Ls Electric Co., Ltd.
- Power system protection system, power system protector, and power system protection method17 Sep 2026US 2026/0280276 A1Mitsubishi Electric Corporation
- Short-circuit protection with a semiconductor switch27 Aug 2026US 2026/0249701 A1Siemens Mobility GmbH
- Electric Propulsion System Architecture27 Aug 2026US 2026/0250000 A1GE Aviation Systems LLC
Most cited
By later US patents
- Integrated protection, monitoring, and control system252US 7,747,356 B2General Electric Company · 2010
- Circuit breaker panel241US 8,681,463 B2Edison Global Circuits, LLC · 2014
- Digital sensor apparatus and system for protection, control, and management of electricity distribution systems231US 5,995,911 APower Measurement Ltd. · 1999
- Digital sensor apparatus and system for protection, control and management of electricity distribution systems219US 6,236,949 B1Power Measurement Ltd. · 2001
- Distribution automation smart remote terminal unit194US 5,237,511 AWestronic, Inc. · 1993