H01H 2223/03
Separate key housing
H01H2223/03 (Separate key housing) appears on 64 US grants and 53 published applications in this corpus.
Search patents in H01H- Granted patents
- 64
- Published applications
- 53
- Assignees
- 54
- Inventors
- 137
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 2 | 4 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 2 |
| 2011 | 3 | 0 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 0 | 4 |
| 2017 | 6 | 7 |
| 2018 | 6 | 9 |
| 2019 | 4 | 5 |
| 2020 | 7 | 2 |
| 2021 | 2 | 1 |
| 2022 | 3 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 4 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Key structure for keyboard17 Mar 2026US 12,580,140 B2Voyetra Turtle Beach, Inc.
- Key structure with light-guiding function3 Jun 2025US 12,322,558 B2Voyetra Turtle Beach, Inc.
- Base unit for a keyboard, accessory module for a keyboard, and keyboard21 Jan 2025US 12,205,781 B2Cherry Europe GMBH
- Light-pervious bicolor key cap19 Nov 2024US RE50,214 E1Taiwan Tai-Hao Enterprise Co., Ltd.
- Key structure and assembly method thereof6 Dec 2022US 11,521,809 B2Silitek Electronics (Dongguan) Co., Ltd
- Improved key structure for keyboard20 Feb 2025US 2025/0062088 A1Voyetra Turtle Beach, Inc.
- Key structure for keyboard6 Feb 2025US 2025/0046543 A1Voyetra Turtle Beach, Inc.
- Key structure with light-guiding function14 Nov 2024US 2024/0379302 A1Voyetra Turtle Beach, Inc.
- Safety switch for guarding accesses, related assembly and assembly method24 Oct 2024US 2024/0355560 A1Pizzato Elettrica S.R. L.
- Safety switch for guarding accesses to machines or industrial plants and related assembly24 Oct 2024US 2024/0355561 A1Pizzato Elettrica S.R. L.
Most cited
By later US patents
- Foot switcher, foot switch sheet and mat for use in the same81US 6,450,886 B1Konami Corporation · 2002
- Keyboard for mobile devices78US 7,432,911 B2Research In Motion Limited · 2008
- Dovetail base assembly for keyswitches77US 4,564,732 AHi-Tek Corporation · 1986
- Electronic keyboard35US 4,467,150 ADigital Equipment Corporation · 1984
- Flat foot switch unit with non-slippage structure34US 6,329,620 B1Konami Corporation · 2001