G10H 2220/295
Switch matrix
Official title: Switch matrix, e.g. contact array common to several keys, the actuated keys being identified by the rows and columns in contact
G10H2220/295 (Switch matrix) appears on 102 US grants and 80 published applications in this corpus.
Search patents in G10H- Granted patents
- 102
- Published applications
- 80
- Assignees
- 34
- Inventors
- 152
- Latest grant
- 7 Jun 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 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 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 5 |
| 2008 | 3 | 1 |
| 2009 | 3 | 4 |
| 2010 | 1 | 2 |
| 2011 | 2 | 7 |
| 2012 | 4 | 2 |
| 2013 | 2 | 5 |
| 2014 | 5 | 7 |
| 2015 | 9 | 6 |
| 2016 | 5 | 5 |
| 2017 | 9 | 5 |
| 2018 | 2 | 5 |
| 2019 | 5 | 4 |
| 2020 | 4 | 6 |
| 2021 | 4 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wireless virtual display controller7 Jun 2022US 11,355,094 B2Badvr, Inc.
- Modular control device4 Jan 2022US 11,217,214 B2Specialwaves S.R.L.
- Musical instruments including keyboard guitars9 Nov 2021US 11,170,748 B2
- Musical instrument special effects device8 Jun 2021US 11,030,985 B2Algorhythm Technologies Inc.
- Guitar-like digital musical instrument1 Jun 2021US 11,024,270 B2
- Input detection system2 Jul 2026US 2026/0188287 A1Japan Display Inc.
- Electronic keyboard module25 Jun 2026US 2026/0179595 A1Ya Horng Electronic Co., Ltd.
- Electronic music generating device including key assemblies and related methods29 Jan 2026US 2026/0031073 A1Dog Paw Inc.
- Fingerboard for musical instrument1 May 2025US 2025/0140220 A1Marcodi Musical Products, LLC
- Piano chord producing bars16 Jan 2025US 2025/0022447 A1
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