G04B 21/08
Sounding bodies
Official title: Sounding bodies; Whistles; Musical apparatus (with electro-acoustical transmitters G04C21/00, {G04B23/08; sounding arrangements in alarm clocks G04B23/028; cases with arrangements for enhancing sound production G04B37/0075; carillons and sounding boards G10F1/08, G04B1/10, G10D13/08})
G04B21/08 (Sounding bodies) appears on 57 US grants and 54 published applications in this corpus.
Search patents in G04B- Granted patents
- 57
- Published applications
- 54
- Assignees
- 23
- Inventors
- 77
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 2 | 4 |
| 2010 | 4 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 3 |
| 2013 | 5 | 0 |
| 2014 | 1 | 3 |
| 2015 | 4 | 5 |
| 2016 | 7 | 10 |
| 2017 | 3 | 4 |
| 2018 | 2 | 0 |
| 2019 | 4 | 3 |
| 2020 | 1 | 6 |
| 2021 | 0 | 2 |
| 2022 | 4 | 4 |
| 2023 | 6 | 0 |
| 2024 | 2 | 0 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sound-generating timepiece2 Sep 2025US 12,405,577 B2Patek Philippe SA Geneve
- Timepiece comprising a vibration-amplifying device8 Jul 2025US 12,353,171 B2Patek Philippe SA Geneve
- General 2 degree of freedom isotropic harmonic oscillator and associated time base without escapement or with simplified escapement1 Apr 2025US 12,265,359 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Method of harmonic tuning of at least one gong of a watch striking mechanism25 Jun 2024US 12,019,404 B2Montres Breguet S. A.
- Method for frequency tuning a set of plates of a watch, and watch comprising the set of tuned plates7 May 2024US 11,978,427 B2Montres Breguet S. A.
- Resonant organ for a striking mechanism of a timepiece, the striking mechanism comprising such a resonant organ, and method for manufacturing such a resonant organ5 Mar 2026US 2026/0064078 A1Omega SA
- Sound production device for timepiece movement comprising a chiming or alarm mechanism19 Jun 2025US 2025/0199478 A1Ball Watch Company SA
- Method for frequency tuning a set of plates of a watch, and watch comprising the set of tuned plates29 Dec 2022US 2022/0415294 A1Montres Breguet S. A.
- Timepiece comprising a vibration-amplifying device1 Dec 2022US 2022/0382217 A1Patek Philippe SA Geneve
- Sound-generating timepiece1 Dec 2022US 2022/0382218 A1Patek Philippe SA Geneve
Most cited
By later US patents
- Crystal-bezel assembly unit for a timepiece and process assembly9US 8,411,533 B2Montres Breguet S. A. · 2013
- Bicentennial eagle clock8US 4,050,231 AThe Raymond Lee Organization, Inc. · 1977
- Method, integrated circuit, mechanical analog clock movement and completed assembly for a talking analog clock7US 5,309,413 AESS Technology, Inc. · 1994
- Device for fixing at least one striking gong in timepiece and method of fixing at least one striking gongs in a timepiece7US 7,545,706 B2Richemont International SA · 2009
- Watch with a striking work6US 7,708,458 B2Montres Breguet S. A. · 2010