H01H 50/54
Contact arrangements
H01H50/54 (Contact arrangements) appears on 1,386 US grants and 1,401 published applications in this corpus.
Search patents in H01H- Granted patents
- 1,386
- Published applications
- 1,401
- Assignees
- 423
- Inventors
- 2,075
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 14 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 9 | 0 |
| 1982 | 11 | 0 |
| 1983 | 5 | 0 |
| 1984 | 15 | 0 |
| 1985 | 17 | 0 |
| 1986 | 17 | 0 |
| 1987 | 8 | 0 |
| 1988 | 11 | 0 |
| 1989 | 6 | 0 |
| 1990 | 11 | 0 |
| 1991 | 16 | 0 |
| 1992 | 10 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 17 | 0 |
| 2000 | 17 | 0 |
| 2001 | 17 | 3 |
| 2002 | 15 | 13 |
| 2003 | 19 | 24 |
| 2004 | 18 | 12 |
| 2005 | 20 | 19 |
| 2006 | 14 | 14 |
| 2007 | 7 | 12 |
| 2008 | 9 | 14 |
| 2009 | 10 | 21 |
| 2010 | 15 | 19 |
| 2011 | 16 | 24 |
| 2012 | 35 | 42 |
| 2013 | 39 | 62 |
| 2014 | 33 | 59 |
| 2015 | 57 | 93 |
| 2016 | 66 | 70 |
| 2017 | 78 | 69 |
| 2018 | 62 | 69 |
| 2019 | 67 | 88 |
| 2020 | 63 | 94 |
| 2021 | 87 | 92 |
| 2022 | 77 | 95 |
| 2023 | 80 | 110 |
| 2024 | 86 | 118 |
| 2025 | 85 | 89 |
| 2026 | 52 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 50/546For contactors having bridging contacts636
- H01H 50/56Contact spring sets308
- H01H 50/541Auxiliary contact devices210
- H01H 50/60Moving contact being rigidly combined with movable part of magnetic circuit185
- H01H 50/548For miniaturised relays57
- H01H 50/62Co-operating movable contacts operated by separate electrical actuating means10
Recent patents
- Electromagnetic relay29 Sep 2026US 12,749,640 B2OMRON Corporation
- Arc path formation unit and direct current relay comprising same22 Sep 2026US 12,744,175 B2Ls Electric Co., Ltd.
- Electromagnetic relay15 Sep 2026US 12,738,435 B2Excel Cell Electronic Co., Ltd.
- Electromagnetic relay8 Sep 2026US 12,731,744 B2OMRON Corporation
- Magnetic latching relay with microswitch8 Sep 2026US 12,731,746 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Relay8 Oct 2026US 2026/0311945 A1Sensata Technologies (Wuhu) Co., Ltd.
- High-voltage contactor or high-voltage relay1 Oct 2026US 2026/0302115 A1Pierburg GmbH
- Relay1 Oct 2026US 2026/0302116 A1Sensata Technologies (Wuhu) Co., Ltd.
- Direct current contactor1 Oct 2026US 2026/0302117 A1Kunshan GLVAC YuanTong New Energy Technology Co., Ltd.
- Switching device17 Sep 2026US 2026/0279713 A1
Most cited
By later US patents
- Plunger type electromagnetic relay with arc extinguishing structure92US 5,546,061 ANippondenso Co., Ltd. · 1996
- Electric switch mechanism for relays and contactors87US 4,983,788 ACGE Compagnia Generale Electtromeccanica S.p.A. · 1991
- Auxiliary contact mounting block82US 5,138,121 ASiemens Aktiengesellschaft · 1992
- Electromagnetic switching apparatus68US 6,911,884 B2Matsushita Electric Works, Ltd. · 2005
- Arc suppressor circuit67US 3,982,137 APower Management Corporation · 1976