F16K 31/082
Using a electromagnet and a permanent magnet
Official title: {using a electromagnet and a permanent magnet}
F16K31/082 (Using a electromagnet and a permanent magnet) appears on 461 US grants and 418 published applications in this corpus.
Search patents in F16K- Granted patents
- 461
- Published applications
- 418
- Assignees
- 330
- Inventors
- 969
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 16 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 6 |
| 2002 | 11 | 5 |
| 2003 | 7 | 7 |
| 2004 | 4 | 13 |
| 2005 | 11 | 15 |
| 2006 | 12 | 11 |
| 2007 | 4 | 8 |
| 2008 | 2 | 12 |
| 2009 | 7 | 7 |
| 2010 | 6 | 19 |
| 2011 | 4 | 15 |
| 2012 | 7 | 13 |
| 2013 | 17 | 9 |
| 2014 | 11 | 13 |
| 2015 | 18 | 18 |
| 2016 | 12 | 22 |
| 2017 | 15 | 32 |
| 2018 | 18 | 20 |
| 2019 | 18 | 27 |
| 2020 | 29 | 31 |
| 2021 | 21 | 25 |
| 2022 | 29 | 17 |
| 2023 | 18 | 17 |
| 2024 | 10 | 23 |
| 2025 | 22 | 22 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Valve core with microporous structure and solenoid valve using valve core25 Aug 2026US 12,716,511 B2Suzhou Rayontech Technology Co., Ltd
- Electromagnetic actuator and valve having the electromagnetic actuator28 Jul 2026US 12,695,015 B2Magnetic Innovations LLC
- Safety valve employing radially coupled magnetic targets and an electromagnet axially coupled to a magnetic target26 May 2026US 12,637,922 B2Halliburton Energy Services.Inc.
- Magnetically actuated gate valve19 May 2026US 12,631,264 B2FMC Technologies, Inc.
- Dosing valve17 Sep 2026US 2026/0276089 A1Buerkert Werke GmbH
- Magnetically actuated gate valve3 Sep 2026US 2026/0258880 A1FMC Technologies, Inc.
- Solenoid actuator and solenoid valve13 Aug 2026US 2026/0235224 A1Astemo, Ltd.
- Control valve6 Aug 2026US 2026/0226997 A1Nanjing Hanshu Environmental Protection Equipment Co., Ltd.
- Liquid level valve16 Jul 2026US 2026/0201974 A1Nanjing Hanshu Environmental Protection Equipment Co., Ltd.
Most cited
By later US patents
- Sealed motor driven valve164US 6,460,567 B1Hansen Technologies Corporation · 2002
- Proportional variable force solenoid control valve121US 4,988,074 AHi-Ram, Inc. · 1991
- Cooling control system and expansion valve therefor118US 4,506,518 APacific Industrial Co., Ltd. · 1985
- Apparatus and method for controlling fluid flow117US 6,948,697 B2Arichell Technologies, Inc. · 2005
- Directional valve113US 6,536,433 B1Siemens Elema AB · 2003