B41J 5/28
Multiple-action keys
Official title: Multiple-action keys, e.g. keys depressed by two or more amounts or movable in two or more directions to effect different functions or selections
B41J5/28 (Multiple-action keys) appears on 60 US grants and 22 published applications in this corpus.
Search patents in B41J- Granted patents
- 60
- Published applications
- 22
- Assignees
- 9
- Inventors
- 28
- Latest grant
- 11 Jul 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 3 | 3 |
| 2005 | 4 | 10 |
| 2006 | 3 | 0 |
| 2007 | 3 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Speed typing apparatus10 Nov 2016US 2016/0328025 A1
- Speed typing apparatus4 Feb 2016US 2016/0034045 A1
- Speed typing apparatus29 Jan 2015US 2015/0030367 A1
- Speed typing apparatus12 Jun 2014US 2014/0161503 A1
- Character and function key input device using dictionary order and use frequency12 Apr 2012US 2012/0086584 A1
Most cited
By later US patents
- Cursor control135US 4,313,113 AXerox Corporation · 1982
- Single hand keyboard arrays providing alphanumeric capabilities from twelve keys100US 4,891,777 ALaitram, L. L. C. · 1990
- Keyboard with elongate keys94US 4,449,839 A1984
- Electronic keyboard for one-hand operation84US 5,087,910 A1992
- Keyboard actuatable with the aid of the fingers of at least one hand48US 4,201,489 ACreatcchnil Patent AG · 1980