H01H 51/04
With single armature
Official title: with single armature; with single set of ganged armatures
H01H51/04 (With single armature) appears on 512 US grants and 384 published applications in this corpus.
Search patents in H01H- Granted patents
- 512
- Published applications
- 384
- Assignees
- 189
- Inventors
- 846
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 1 | 0 |
| 1991 | 19 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 8 |
| 2003 | 5 | 5 |
| 2004 | 8 | 10 |
| 2005 | 8 | 5 |
| 2006 | 6 | 5 |
| 2007 | 2 | 9 |
| 2008 | 3 | 7 |
| 2009 | 11 | 20 |
| 2010 | 5 | 19 |
| 2011 | 8 | 16 |
| 2012 | 26 | 31 |
| 2013 | 31 | 30 |
| 2014 | 22 | 29 |
| 2015 | 29 | 28 |
| 2016 | 21 | 16 |
| 2017 | 23 | 19 |
| 2018 | 18 | 20 |
| 2019 | 15 | 18 |
| 2020 | 14 | 21 |
| 2021 | 15 | 13 |
| 2022 | 21 | 16 |
| 2023 | 15 | 10 |
| 2024 | 7 | 12 |
| 2025 | 13 | 7 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hermetic terminal and contact device using hermetic terminal16 Jun 2026US 12,658,611 B2SCHOTT Japan Corporation
- Latch assembly and magnetic contactor including same20 Jan 2026US 12,531,198 B2Ls Electric Co., Ltd.
- Magnetic momentum transfer generator23 Dec 2025US 12,505,969 B2Wepower Technologies LLC
- Relay having a pressure relief valve assembly2 Dec 2025US 12,488,954 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Connecting structure between lead-out pins of auxiliary stationary contacts and yoke plate of DC relay25 Nov 2025US 12,482,621 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Contactor1 Oct 2026US 2026/0302114 A1Schneider Electric Industries SAS
- Relay1 Oct 2026US 2026/0302116 A1Sensata Technologies (Wuhu) Co., Ltd.
- Electromagnetic relay and detection system23 Apr 2026US 2026/0112558 A1Panasonic Intellectual Property Management Co., Ltd.
- Magnetic momentum transfer generator9 Apr 2026US 2026/0100321 A1Wepower Technologies LLC
- Relay12 Feb 2026US 2026/0045432 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
Most cited
By later US patents
- Sealed contact device with contact gap adjustment capability102US 5,892,194 AMatsushita Electric Works, Ltd. · 1999
- Remote control system75US 4,518,945 ALeviton Manufacturing Co., Inc. · 1985
- Solenoid switch contact and mounting assembly60US 5,021,760 AClum Manufacturing Company, Inc. · 1991
- Contact device56US 7,859,373 B2Panasonic Electric Works Co., Ltd. · 2010
- Remote control system49US 4,386,338 ALeviton Manufacturing Co., Inc. · 1983