G01R 31/333
Testing of the switching capacity of high-voltage circuit-breakers
Official title: Testing of the switching capacity of high-voltage circuit-breakers {; Testing of breaking capacity or related variables, e.g. post arc current or transient recovery voltage}
G01R31/333 (Testing of the switching capacity of high-voltage circuit-breakers) appears on 101 US grants and 104 published applications in this corpus.
Search patents in G01R- Granted patents
- 101
- Published applications
- 104
- Assignees
- 74
- Inventors
- 265
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 3 | 4 |
| 2005 | 4 | 1 |
| 2006 | 4 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 5 |
| 2014 | 0 | 4 |
| 2015 | 3 | 10 |
| 2016 | 7 | 10 |
| 2017 | 9 | 10 |
| 2018 | 5 | 9 |
| 2019 | 8 | 2 |
| 2020 | 8 | 5 |
| 2021 | 5 | 8 |
| 2022 | 7 | 5 |
| 2023 | 4 | 10 |
| 2024 | 7 | 3 |
| 2025 | 7 | 6 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- End of life monitoring for a solid-state circuit breaker11 Aug 2026US 12,706,267 B2Siemens Industry, Inc.
- Arc flash mitigation device24 Feb 2026US 12,562,559 B2Eaton Intelligent Power Limited
- Device and method for diagnosing damage to switch in battery protection circuit, and battery management device comprising same23 Dec 2025US 12,504,477 B2LG Energy Solution, Ltd.
- Tester for a frequency-dependent ground fault interrupt wiring device18 Nov 2025US 12,474,407 B2Pass & Seymour, Inc.
- Testing system that determines contact erosion in circuit breaker15 Jul 2025US 12,360,163 B2Jst Power Equipment, Inc.
- Tester for a frequency-dependent ground fault interrupt wiring device16 Jul 2026US 2026/0202473 A1Pass & Seymour, Inc.
- Arc flash mitigation device4 Jun 2026US 2026/0155644 A1Eaton Intelligent Power Limited
- System and method for detecting failures of solid-state switches in a main circuit28 May 2026US 2026/0147043 A1Schneider Electric Industries SAS
- Method for estimating a trip intensity of a circuit breaker, system, assembly, and associated computer program20 Nov 2025US 2025/0355046 A1Schneider Electric Industries SAS
- Wireless provision of information from switch function tests6 Nov 2025US 2025/0341576 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Method and apparatus for testing an arcing fault circuit interrupter57US 6,218,844 B1Square D Company · 2001
- Device for sensing of electric discharges in a test object35US 5,933,012 AABB Research Ltd. · 1999
- Portable circuit interrupter shutoff testing device and method30US 7,173,428 B22007
- Residential circuit arc detection22US 6,751,528 B1General Electric Company · 2004
- Portable circuit interrupter tester and method21US 7,199,587 B22007