G10H 2220/275
Switching mechanism or sensor details of individual keys
Official title: Switching mechanism or sensor details of individual keys, e.g. details of key contacts, hall effect or piezoelectric sensors used for key position or movement sensing purposes; Mounting thereof
G10H2220/275 (Switching mechanism or sensor details of individual keys) appears on 227 US grants and 225 published applications in this corpus.
Search patents in G10H- Granted patents
- 227
- Published applications
- 225
- Assignees
- 62
- Inventors
- 331
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 3 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 2 | 5 |
| 2007 | 3 | 8 |
| 2008 | 5 | 3 |
| 2009 | 4 | 5 |
| 2010 | 2 | 3 |
| 2011 | 2 | 10 |
| 2012 | 5 | 3 |
| 2013 | 6 | 7 |
| 2014 | 8 | 9 |
| 2015 | 11 | 8 |
| 2016 | 10 | 14 |
| 2017 | 17 | 8 |
| 2018 | 2 | 13 |
| 2019 | 18 | 21 |
| 2020 | 20 | 27 |
| 2021 | 17 | 10 |
| 2022 | 9 | 14 |
| 2023 | 11 | 12 |
| 2024 | 6 | 12 |
| 2025 | 5 | 14 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G10H 2220/295Switch matrixIndexing code102
- G10H 2220/285With three contacts, switches or sensor triggering levels along the key kinematicIndexing code40
- G10H 2220/281With two contacts, switches or sensor triggering levels along the key kinematicIndexing code22
- G10H 2220/291With four or more contacts, switches or sensor triggering levels along theIndexing code8
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Most cited
By later US patents
- Constantly changing polyphonic pitch controller135US 4,794,838 A1989
- Electronic stringed musical instrument91US 6,191,350 B1The Guitron Corporation · 2001
- Electronic keyboard instrument85US 5,557,057 A1996
- Fingerboard for musical instrument77US 5,398,585 A1995
- Electric musical string instruments and frets therefor74US 4,748,887 A1988