H01H 83/14
Operated by imbalance of two or more currents or voltages
Official title: operated by imbalance of two or more currents or voltages, e.g. for differential protection
H01H83/14 (Operated by imbalance of two or more currents or voltages) appears on 185 US grants and 156 published applications in this corpus.
Search patents in H01H- Granted patents
- 185
- Published applications
- 156
- Assignees
- 91
- Inventors
- 326
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 4 |
| 2003 | 3 | 1 |
| 2004 | 4 | 2 |
| 2005 | 1 | 3 |
| 2006 | 1 | 2 |
| 2007 | 4 | 6 |
| 2008 | 6 | 4 |
| 2009 | 4 | 0 |
| 2010 | 1 | 6 |
| 2011 | 3 | 3 |
| 2012 | 5 | 7 |
| 2013 | 3 | 4 |
| 2014 | 5 | 7 |
| 2015 | 7 | 5 |
| 2016 | 2 | 4 |
| 2017 | 3 | 11 |
| 2018 | 8 | 14 |
| 2019 | 12 | 12 |
| 2020 | 15 | 7 |
| 2021 | 6 | 11 |
| 2022 | 14 | 8 |
| 2023 | 11 | 6 |
| 2024 | 4 | 13 |
| 2025 | 9 | 4 |
| 2026 | 3 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connector for a circuit breaker and a downstream contactor, feeder with such a connector and arrangement with such a feeder17 Mar 2026US 12,580,139 B2Siemens Aktiengesellschaft
- Circuit breaker24 Feb 2026US 12,562,322 B2Siemens Aktiengesellschaft
- Ground fault circuit interrupters and connectors for use with same24 Feb 2026US 12,562,536 B2Hubbell Incorporated
- Plug-in summation current transformer module, rail-mounted device, and assembly method7 Oct 2025US 12,437,950 B2Siemens Aktiengesellschaft
- Solenoid-based voltage imbalance protection23 Sep 2025US 12,424,839 B2Schneider Electric USA, Inc.
- System on sensor electrical protective device30 Jul 2026US 2026/0221365 A1Schneider Electric USA, Inc.
- Ground fault circuit interrupters and connectors for use with same25 Jun 2026US 2026/0180262 A1
- Combined leakage protection device7 May 2026US 2026/0128247 A1
- Ground fault detection circuit breaker7 May 2026US 2026/0128248 A1
- Protective device, protective assembly, electrical panel and associated test method23 Apr 2026US 2026/0110736 A1Schneider Electric Industries SAS
Most cited
By later US patents
- Fail safe fault interrupter144US 6,262,871 B1X-L Synergy · 2001
- Ground fault current protective device87US 4,937,706 AMerlin Gerin · 1990
- Switch mechanism79US 5,517,165 APDL Holdings Limited · 1996
- Electrical receptacle mounted ground fault interrupter with automatic plug insertion testing58US 4,002,951 ACutler-Hammer, Inc. · 1977
- Ground fault circuit interrupter55US 4,630,015 ASlater Electric Inc. · 1986