G10C 3/04
Frames
Official title: Frames; Bridges; Bars
G10C3/04 (Frames) appears on 47 US grants and 28 published applications in this corpus.
Search patents in G10C- Granted patents
- 47
- Published applications
- 28
- Assignees
- 18
- Inventors
- 60
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 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 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 2 | 4 |
| 2019 | 3 | 2 |
| 2020 | 2 | 0 |
| 2021 | 0 | 2 |
| 2022 | 3 | 4 |
| 2023 | 2 | 2 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transportable stringed keyboard instrument6 Jan 2026US 12,518,726 B2Keybird Instruments ApS
- Actuator for piano, and piano22 Oct 2024US 12,125,461 B2Yamaha Corporation
- Key support structure of keyboard device2 Jan 2024US 11,862,134 B2Yamaha Corporation
- Piano tuning retention system16 May 2023US 11,651,753 B2
- Keyboard device for keyboard instrument24 Jan 2023US 11,562,718 B2Kabushiki Kaisha Kawai Gakki Seisakusho
- Piano string frame16 Jan 2025US 2025/0022442 A11066 Group Ltd
- Keyboard instrument stand and keyboard instrument set19 Oct 2023US 2023/0335082 A1Casio Computer Co., Ltd.
- Transportable Stringed Keyboard Instrument27 Apr 2023US 2023/0127612 A1Keybird Instruments ApS
- Piano tuning retention system17 Nov 2022US 2022/0366875 A1
- Keyboard device for keyboard instrument15 Sep 2022US 2022/0293068 A1Kabushiki Kaisha Kawai Gakki Seisakusho
Most cited
By later US patents
- Piano with sound-enhancing system23US 4,058,045 ASolosonic · 1977
- Electric piano12US 4,084,473 AKabushiki Kaisha Kawai Gakki Seisakusho · 1978
- Piano key frame9US 4,127,051 AD. H. Baldwin Company · 1978
- Keyboard musical instrument8US 6,329,585 B12001
- Piano construction7US 4,377,102 ACurrier Piano Company, Inc. · 1983