H01H 71/04
Means for indicating condition of the switching device
Official title: Means for indicating condition of the switching device {(by means of an auxiliary contact H01H71/46)}
H01H71/04 (Means for indicating condition of the switching device) appears on 791 US grants and 734 published applications in this corpus.
Search patents in H01H- Granted patents
- 791
- Published applications
- 734
- Assignees
- 241
- Inventors
- 1,462
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 9 | 0 |
| 1987 | 9 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 12 | 4 |
| 2002 | 17 | 14 |
| 2003 | 11 | 10 |
| 2004 | 13 | 9 |
| 2005 | 10 | 14 |
| 2006 | 15 | 24 |
| 2007 | 16 | 25 |
| 2008 | 19 | 19 |
| 2009 | 21 | 21 |
| 2010 | 19 | 19 |
| 2011 | 15 | 23 |
| 2012 | 20 | 18 |
| 2013 | 15 | 27 |
| 2014 | 18 | 30 |
| 2015 | 23 | 24 |
| 2016 | 23 | 31 |
| 2017 | 38 | 33 |
| 2018 | 19 | 42 |
| 2019 | 52 | 39 |
| 2020 | 32 | 56 |
| 2021 | 42 | 34 |
| 2022 | 41 | 48 |
| 2023 | 50 | 54 |
| 2024 | 51 | 48 |
| 2025 | 38 | 41 |
| 2026 | 32 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 2071/044Monitoring, detection or measuring systems to establish the end of life ofIndexing code201
- H01H 2071/042With different indications for different conditionsIndexing code124
- H01H 2071/048Containing non-mechanical switch position sensorIndexing code72
- H01H 2071/046Exclusively by position of operating partIndexing code69
Recent patents
- Self-test auto monitor ground fault circuit interrupter (GFCI) with power denial6 Oct 2026US 12,754,232 B2Hubbell Incorporated
- Electrical protection devices comprising an integrated switching module6 Oct 2026US 12,755,918 B2Schneider Electric Industries SAS
- Secure communication for commissioning and decommissioning circuit breakers and panel system29 Sep 2026US 12,750,674 B2Leviton Manufacturing Co., Inc.
- Circuit breaker11 Aug 2026US 12,706,258 B2Siemens Aktiengesellschaft
- Protective wiring device11 Aug 2026US 12,706,266 B2Pass & Seymour, Inc.
- Main circuit breaker with integrated replaceable surge protection24 Sep 2026US 2026/0290735 A1Eaton Intelligent Power Limited
- Solid-state circuit breaker13 Aug 2026US 2026/0237587 A1Schneider Electric Industries SAS
- Power switch assembly having indicators and removable cover18 Jun 2026US 2026/0171335 A1Hubbell Incorporated
- Method and apparatus for monitoring switching unit in solid-state circuit breaker18 Jun 2026US 2026/0171340 A1Schneider Electric Industries SAS
- Device for measuring at least one electrical quantity and associated operating diagnostic system14 May 2026US 2026/0133220 A1Schneider Electric Industries SAS
Most cited
By later US patents
- Trip indicators for circuit protection devices143US 5,847,913 ASquare D Company · 1998
- Circuit breaker with remote control and disconnection function120US 5,477,016 AMerlin Gerin · 1995
- Circuit breaker condition indicator apparatus107US 4,301,342 AGeneral Electric Company · 1981
- Circuit breaker fitted with a device for indicating a short circuit92US 4,375,022 AAlsthom-Unelec · 1983
- Contact arrangement for a current limiting circuit breaker91US 4,616,198 AGeneral Electric Company · 1986