H01H 2219/048
Constituting key
H01H2219/048 (Constituting key) appears on 42 US grants and 40 published applications in this corpus.
Search patents in H01H- Granted patents
- 42
- Published applications
- 40
- Assignees
- 30
- Inventors
- 101
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 3 |
| 2010 | 3 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 4 |
| 2016 | 3 | 5 |
| 2017 | 1 | 6 |
| 2018 | 5 | 3 |
| 2019 | 4 | 5 |
| 2020 | 9 | 3 |
| 2021 | 3 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Key structure14 Apr 2026US 12,603,236 B2Acer Incorporated
- Lighting keyboard, backlight module and lighting board24 Feb 2026US 12,562,327 B2Darfon Electronics Corp.
- Keyboard key structure and light guide20 Jan 2026US 12,531,192 B2Logitech Europe S. A.
- Illuminated keyswitch structure22 Apr 2025US 12,283,439 B2Darfon Electronics Corp.
- Keycaps having reduced thickness11 Jul 2023US 11,699,558 B2Apple Inc.
- Key structure17 Oct 2024US 2024/0347288 A1Acer Incorporated
- Keyboard key structure and light guide11 Jan 2024US 2024/0013988 A1Logitech Europe S. A.
- Illuminated keyswitch structure28 Dec 2023US 2023/0420197 A1Darfon Electronics Corp.
- Lighting keyboard, backlight module and lighting board28 Dec 2023US 2023/0420199 A1Darfon Electronics Corp.
- Detachable screen key structure17 Jun 2021US 2021/0183594 A1
Most cited
By later US patents
- Arrangement for integration of key illumination into keymat of portable electronic devices44US 6,704,004 B1Nokia Mobile Phones Ltd. · 2004
- Push-button keyboard assembly with EMI and RFI-shielded multiple individually-replaceable switch modules35US 4,814,566 A1989
- Integration of organic light-emitting components into the keyboard of an electronic device25US 6,803,903 B1Nokia Mobile Phones Ltd. · 2004
- Keycaps having reduced thickness20US 9,704,670 B2Apple Inc. · 2017
- Miniature switch and battery holder19US 7,683,275 B2Playhard, Inc. · 2010