B41J 5/12
Construction of key buttons
B41J5/12 (Construction of key buttons) appears on 53 US grants and 14 published applications in this corpus.
Search patents in B41J- Granted patents
- 53
- Published applications
- 14
- Assignees
- 29
- Inventors
- 85
- Latest grant
- 5 Jan 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 3 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Keyboard device5 Jan 2021US 10,886,081 B1Chicony Electronics Co., Ltd.
- Key device10 Sep 2019US 10,409,316 B1Chicony Electronics Co., Ltd.
- Keyboard structure6 Aug 2019US 10,373,769 B2Darfon Electronics Corp.
- Switch actuator with enhanced haptic feedback18 Sep 2018US 10,079,123 B2
- Switch actuator with haptic and audible feedback19 Jun 2018US 10,002,724 B2
- Keyboard Device and Film Structure25 Jun 2020US 2020/0201448 A1Acrox Technologies Co., Ltd.
- Integration of Keyboard Device and Film Structure25 Jun 2020US 2020/0203097 A1Acrox Technologies Co., Ltd.
- Magnetic keyboard domes5 Mar 2020US 2020/0070543 A1Hewlett-Packard Development Company, L. P.
- Cap structure and keyswitch thereof1 Aug 2019US 2019/0237279 A1Darfon Electronics Corp.
- Keyboard Structure10 May 2018US 2018/0130614 A1Darfon Electronics Corp.
Most cited
By later US patents
- Tactile element and keyboard including the tactile element80US 4,307,268 ARogers Corporation · 1981
- Keyboard with full-travel, self-leveling keyswitches and return mechanism keyswitch76US 5,422,447 AKey Tronic Corporation · 1995
- Collapsible keyboard43US 5,163,765 AApple Computer, Inc. · 1992
- Illuminated button key38US 5,234,744 ASunarrow Ltd · 1993
- Multi-row keyboard for typewriters or similar machines35US 4,294,555 AInternational Standard Electric Corporation · 1981