H02H 3/12
Responsive to underload or no-load
Official title: responsive to underload or no-load {(for motors H02H7/0827)}
H02H3/12 (Responsive to underload or no-load) appears on 132 US grants and 109 published applications in this corpus.
Search patents in H02H- Granted patents
- 132
- Published applications
- 109
- Assignees
- 103
- Inventors
- 275
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 6 |
| 2004 | 3 | 2 |
| 2005 | 0 | 3 |
| 2006 | 3 | 4 |
| 2007 | 4 | 1 |
| 2008 | 1 | 11 |
| 2009 | 3 | 6 |
| 2010 | 3 | 7 |
| 2011 | 8 | 5 |
| 2012 | 8 | 12 |
| 2013 | 5 | 1 |
| 2014 | 1 | 7 |
| 2015 | 4 | 2 |
| 2016 | 3 | 1 |
| 2017 | 0 | 3 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 4 |
| 2021 | 3 | 4 |
| 2022 | 2 | 8 |
| 2023 | 7 | 5 |
| 2024 | 5 | 3 |
| 2025 | 4 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for controlling an electrical receptacle2 Jun 2026US 12,646,922 B2Hubbell Incorporated
- Electronic device and method for inspecting cable connection circuit of electronic device10 Mar 2026US 12,571,856 B2Samsung Electronics Co., Ltd.
- Fast charger protection under sudden stop conditions10 Feb 2026US 12,545,137 B2Rivian IP Holdings, LLC
- Single phase broken conductor detection4 Nov 2025US 12,461,171 B2Schweitzer Engineering Laboratories, Inc.
- Electronic controller connectable to one or more loads for monitoring the loads16 Sep 2025US 12,416,436 B2Carel Industries S.P.A.
- Leakage Protection Circuit, Electrical Equipment, and Leakage Protection Method30 Apr 2026US 2026/0121398 A1Joulwatt Technology Co., Ltd.
- Systems and methods for power line fault detection12 Mar 2026US 2026/0072069 A1Sentient Technology Holdings, LLC
- Device for protecting a circuit connected to a power supply system from overvoltages22 Jan 2026US 2026/0024985 A1Turck Holding GmbH
- Open-phase fault and secondary arc extinction detection in electric power systems18 Dec 2025US 2025/0385505 A1Schweitzer Engineering Laboratories, Inc.
- Power loss protection circuit, data storage module, and server21 Aug 2025US 2025/0266675 A1Rohm Co., Ltd.
Most cited
By later US patents
- Power supply control device, method for controlling power supply, program and power supply device833US 8,369,056 B2TDK Corporation · 2013
- Ophthalmic microsurgical system employing surgical module employing flash EEPROM and reprogrammable modules222US 6,251,113 B1Bausch & Lomb Surgical, Inc. · 2001
- Surgical module with independent microprocessor-based communication201US 6,117,126 ABausch & Lomb Surgical, Inc. · 2000
- Numeric keypad simulated on touchscreen172US 5,910,139 AStorz Instrument Company · 1999
- Electric motor underload protection system118US 4,703,387 AFranklin Electric Co., Inc. · 1987