G04C 3/06
Using electromagnetic coupling between electric power source and balance
Official title: using electromagnetic coupling between electric power source and balance
G04C3/06 (Using electromagnetic coupling between electric power source and balance) appears on 42 US grants and 30 published applications in this corpus.
Search patents in G04C- Granted patents
- 42
- Published applications
- 30
- Assignees
- 22
- Inventors
- 69
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 0 | 0 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 5 |
| 2016 | 2 | 1 |
| 2017 | 3 | 3 |
| 2018 | 3 | 0 |
| 2019 | 1 | 4 |
| 2020 | 0 | 2 |
| 2021 | 2 | 0 |
| 2022 | 3 | 3 |
| 2023 | 2 | 2 |
| 2024 | 2 | 2 |
| 2025 | 2 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G04C 3/065The balance controlling gear-train by means of static switches18
- G04C 3/061The balance controlling contacts and mechanically driving the gear-train10
- G04C 3/064The balance controlling indirectly, i.e. without mechanical connection, contacts10
- G04C 3/062The balance controlling contacts, the gear-train or several gear-trains being driven electro-magnetically1
- G04C 3/063The balance controlling contacts, the balance driving electro-magnet simultaneously driving the gear-train1
Recent patents
- Mechanical watch29 Sep 2026US 12,748,382 B2Seiko Epson Corporation
- Frequency setting of a horological oscillator by optomechanical deformations10 Mar 2026US 12,572,115 B2The Swatch Group Research and Development Ltd
- Mechanical timepiece30 Sep 2025US 12,429,827 B2Citizen Watch Co., Ltd.
- Timepiece assembly comprising a watch and a system for correcting the time6 May 2025US 12,292,715 B2The Swatch Group Research and Development Ltd
- Wearable object, in particular watch bracelet, comprising a power supply device provided with an electromechanical converter17 Dec 2024US 12,169,391 B2The Swatch Group Research and Development Ltd
- Frequency setting of a horological oscillator by optomechanical deformations25 Dec 2025US 2025/0390063 A1The Swatch Group Research and Development Ltd
- Mechanical timepiece5 Jun 2025US 2025/0181035 A1Citizen Watch Co., Ltd.
- Mechanical Watch15 Aug 2024US 2024/0272588 A1Seiko Epson Corporation
- Mechanical timepiece18 Apr 2024US 2024/0126212 A1Citizen Watch Co., Ltd.
- Frequency setting of a horological oscillator by optomechanical deformations29 Jun 2023US 2023/0205137 A1The Swatch Group Research and Development Ltd
Most cited
By later US patents
- Mechanical timepiece with posture detector18US 6,520,674 B1Seiko Instruments Inc. · 2003
- Contactless cylinder escapement mechanism for timepieces16US 9,746,829 B2Nivarox-FAR S. A. · 2017
- Timepiece having a mechanical movement associated with an electronic regulator14US 7,016,265 B2Asulab S. A. · 2006
- Mechanical timepiece with timed annular balance rotating angle control mechanism10US 6,554,468 B1Seiko Instruments Inc. · 2003
- Regulating element for wristwatch and mechanical movement comprising one such regulating element10US 7,396,154 B2Tag Heuer SA · 2008