F16K 31/08
Using a permanent magnet
Official title: using a permanent magnet
F16K31/08 (Using a permanent magnet) appears on 884 US grants and 849 published applications in this corpus.
Search patents in F16K- Granted patents
- 884
- Published applications
- 849
- Assignees
- 583
- Inventors
- 1,812
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 15 | 0 |
| 1982 | 10 | 0 |
| 1983 | 10 | 0 |
| 1984 | 12 | 0 |
| 1985 | 19 | 0 |
| 1986 | 13 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 9 | 0 |
| 1993 | 11 | 0 |
| 1994 | 13 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 16 | 0 |
| 2001 | 13 | 7 |
| 2002 | 15 | 12 |
| 2003 | 11 | 14 |
| 2004 | 10 | 23 |
| 2005 | 15 | 24 |
| 2006 | 17 | 28 |
| 2007 | 13 | 16 |
| 2008 | 8 | 27 |
| 2009 | 15 | 13 |
| 2010 | 15 | 34 |
| 2011 | 10 | 29 |
| 2012 | 14 | 30 |
| 2013 | 29 | 32 |
| 2014 | 23 | 37 |
| 2015 | 31 | 41 |
| 2016 | 35 | 35 |
| 2017 | 32 | 59 |
| 2018 | 36 | 44 |
| 2019 | 43 | 46 |
| 2020 | 50 | 60 |
| 2021 | 50 | 49 |
| 2022 | 50 | 39 |
| 2023 | 35 | 35 |
| 2024 | 28 | 44 |
| 2025 | 38 | 45 |
| 2026 | 18 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Shot peening flow control valve and its method of use6 Oct 2026US 12,752,395 B2Abrasive Engineering Pte Ltd
- Actuated elastic valves6 Oct 2026US 12,753,854 B2Sartorius Stedim Fmt SAS
- Valve core with microporous structure and solenoid valve using valve core25 Aug 2026US 12,716,511 B2Suzhou Rayontech Technology Co., Ltd
- Valve with valve unit and pushbutton housing with actuating button25 Aug 2026US 12,716,513 B2Grohe AG
- Electromagnetic actuator and valve having the electromagnetic actuator28 Jul 2026US 12,695,015 B2Magnetic Innovations LLC
- Magnetic inflation device and inflating and deflating method thereof1 Oct 2026US 2026/0298360 A1
- Dosing valve17 Sep 2026US 2026/0276089 A1Buerkert Werke GmbH
- Magnetically actuated rising stem valve with physical position indication17 Sep 2026US 2026/0276101 A1MagDrive Technologies, Inc.
- Magnetically actuated gate valve3 Sep 2026US 2026/0258880 A1FMC Technologies, Inc.
- Inflation valve assembly27 Aug 2026US 2026/0251229 A1Purple Line Limited
Most cited
By later US patents
- Magnetically actuated fluid handling devices for microfluidic applications164US 6,415,821 B2University of Washington · 2002
- Sealed motor driven valve164US 6,460,567 B1Hansen Technologies Corporation · 2002
- Intraurethral magnetic valve142US 6,066,088 APhillip Davis Inventions, Inc. · 2000
- 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