G09B 13/02
Dummy practice keyboard apparatus
Official title: Dummy practice keyboard apparatus (for teaching music G09B15/08)
G09B13/02 (Dummy practice keyboard apparatus) appears on 8 US grants and 13 published applications in this corpus.
Search patents in G09B- Granted patents
- 8
- Published applications
- 13
- Assignees
- 4
- Inventors
- 18
- Latest grant
- 6 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Keyboard device and keyboard cover26 Feb 2013US 8,384,676 B2
- Keyboard guide11 Nov 2003US 6,644,975 B2
- Keyboard finger guide9 Mar 2023US 2023/0073031 A1
- Memory Device27 Jan 2022US 2022/0023150 A1
- Keyboard finger guide25 Jun 2020US 2020/0202742 A1
- Optical indication for keyboard input suggestion29 Nov 2018US 2018/0341336 A1Microsoft Technology Licensing, LLC
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Most cited
By later US patents