H01H 2221/048
Magnetic
Official title: magnetic
H01H2221/048 (Magnetic) appears on 21 US grants and 17 published applications in this corpus.
Search patents in H01H- Granted patents
- 21
- Published applications
- 17
- Assignees
- 19
- Inventors
- 35
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 6 | 5 |
| 2019 | 3 | 3 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Structure for turning off vanity lamp for vehicle using sun visor7 Apr 2026US 12,597,569 B2Daehan Solution Co., Ltd
- Key structure providing adjustability of pressing force and rebound force, and key device using key structure6 Jun 2023US 11,670,469 B1Hon Hai Precision Industry Co., Ltd.
- Scissor plate control system and method for slower magnetic force decay31 May 2022US 11,348,746 B2Dell Products L. P.
- Input apparatus9 Nov 2021US 11,170,954 B2Alps Alpine Co., Ltd.
- Touchpad module3 Nov 2020US 10,824,252 B1Primax Electronics Ltd.
- Structure for turning off vanity lamp for vehicle using sun visor1 May 2025US 2025/0140488 A1Daehan Solution Co., Ltd
- Scissor plate control system and method for slower magnetic force decay12 Nov 2020US 2020/0357584 A1Dell Products L. P.
- Input apparatus15 Oct 2020US 2020/0328045 A1Alps Alpine Co., Ltd.
- Magnetic keyswitch and related magnetic keyboard2 Apr 2020US 2020/0105485 A1Darfon Electronics Corp.
- Keyswitch2 May 2019US 2019/0131085 A1
Most cited
By later US patents
- Finger operated switching device41US 4,054,944 ARedactron Corporation · 1977
- Power-up control for microprocessor based appliance10US 4,362,954 AMaytag Corporation · 1982
- Membrane keyboard having key closure retention6US 4,564,832 ANippon Mektron, Ltd. · 1986
- Keyswitch structure, switch structure and method of assembling a keyswitch structure6US 9,984,840 B2Darfon Electronics Corp. · 2018
- Switching field5US 5,742,012 AKrone Aktiengesellschaft · 1998