H01H 2239/004
High frequency adaptation or shielding
H01H2239/004 (High frequency adaptation or shielding) appears on 89 US grants and 52 published applications in this corpus.
Search patents in H01H- Granted patents
- 89
- Published applications
- 52
- Assignees
- 65
- Inventors
- 180
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 6 |
| 2006 | 3 | 0 |
| 2007 | 0 | 5 |
| 2008 | 1 | 1 |
| 2009 | 2 | 5 |
| 2010 | 1 | 4 |
| 2011 | 3 | 2 |
| 2012 | 1 | 3 |
| 2013 | 2 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 3 | 5 |
| 2017 | 1 | 0 |
| 2018 | 5 | 4 |
| 2019 | 2 | 2 |
| 2020 | 4 | 6 |
| 2021 | 3 | 0 |
| 2022 | 2 | 0 |
| 2023 | 3 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Backlight module and luminous keyboard using the same28 Apr 2026US 12,614,683 B2Lite-On Electronics (Guangzhou) Limited
- Backlight module and luminous keyboard using the same17 Oct 2023US 11,791,112 B2Lite-On Electronics (Guangzhou) Limited
- Pushbutton switch with light-transmitting indicia on the pushbutton14 Mar 2023US RE49,463 E1
- Keyboard with antenna and sensor21 Feb 2023US 11,587,746 B2Lite-On Electronics (Guangzhou) Limited
- Backlight module and luminous keyboard using the same29 Nov 2022US 11,515,108 B2Lite-On Electronics (Guangzhou) Limited
- Backlight module and luminous keyboard using the same4 Jan 2024US 2024/0006134 A1Lite-On Electronics (Guangzhou) Limited
- Backlight module and luminous keyboard using the same9 Feb 2023US 2023/0038301 A1Lite-On Electronics (Guangzhou) Limited
- Key module26 Nov 2020US 2020/0373097 A1Lite-On Electronics (Guangzhou) Limited
- Key structure26 Nov 2020US 2020/0373098 A1Lite-On Electronics (Guangzhou) Limited
- Backlight module and luminous keyboard using the same26 Nov 2020US 2020/0373107 A1Lite-On Electronics (Guangzhou) Limited
Most cited
By later US patents
- Keyboard with metal cover and improved switches92US 4,771,139 A1988
- Touch plate assembly91US 4,056,699 AEssex International, Inc. · 1977
- Backlighted illuminated keyboard84US 4,449,024 AKB Denver, Inc. · 1984
- Pushbutton switch74US 5,661,279 ASunarrow Ltd · 1997
- Keyboard with flexible display and prompt capability68US 6,067,074 ATexas Instruments Incorporated · 2000