G04C 11/00
Synchronisation of independently-driven clocks
G04C11/00 (Synchronisation of independently-driven clocks) appears on 94 US grants and 88 published applications in this corpus.
Search patents in G04C- Granted patents
- 94
- Published applications
- 88
- Assignees
- 46
- Inventors
- 139
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 4 |
| 2003 | 1 | 0 |
| 2004 | 3 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 3 |
| 2011 | 3 | 5 |
| 2012 | 2 | 3 |
| 2013 | 3 | 3 |
| 2014 | 2 | 1 |
| 2015 | 4 | 5 |
| 2016 | 3 | 3 |
| 2017 | 5 | 5 |
| 2018 | 2 | 7 |
| 2019 | 4 | 5 |
| 2020 | 8 | 13 |
| 2021 | 4 | 5 |
| 2022 | 3 | 4 |
| 2023 | 7 | 7 |
| 2024 | 6 | 1 |
| 2025 | 4 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G04C 11/02Synchronisation of independently-driven clocks: by radio31
- G04C 11/08Synchronisation of independently-driven clocks: using an electro-magnet or-motor for oscillation correction22
- G04C 11/007Synchronisation of independently-driven clocks: by positioning of the index or by regulating4
- G04C 11/04Over a line4
- G04C 11/06Synchronisation of independently-driven clocks: with direct mechanical action on the time-indicating means2
- G04C 11/002Synchronisation of independently-driven clocks: by changing the driving speed1
- G04C 11/005Synchronisation of independently-driven clocks: by changing the ratio of the driving-gear0
Recent patents
- Sympathetic timepiece assembly24 Mar 2026US 12,585,224 B2Montres Breguet S. A.
- Sympathetic timepiece assembly17 Feb 2026US 12,554,226 B2Montres Breguet S. A.
- Sympathique watch comprising a coupling device17 Feb 2026US 12,554,227 B2Montres Breguet S. A.
- Single space wireless parking with improved antenna placements22 Jul 2025US 12,368,227 B2J. J. Mackay Canada Limited
- Device and method for adjusting the rate and correcting the state of display of a watch24 Jun 2025US 12,339,623 B2The Swatch Group Research and Development Ltd
- Single space wireless parking with improved antenna placements8 Jan 2026US 2026/0011906 A1J. J. Mackay Canada Limited
- Electronically Controlled Mechanical Timepiece18 Sep 2025US 2025/0291317 A1Seiko Epson Corporation
- Mechanical timepiece5 Jun 2025US 2025/0181035 A1Citizen Watch Co., Ltd.
- Mechanical Watch15 Aug 2024US 2024/0272588 A1Seiko Epson Corporation
- Sympathetic timepiece assembly5 Oct 2023US 2023/0315023 A1Montres Breguet S. A.
Most cited
By later US patents
- Method and apparatus for alerting a person at medicine dosing times36US 7,993,055 B22011
- Watch movement driven by a spring and regulated by an electronic circuit32US 3,937,001 A1976
- Timepiece driven by a source of mechanical energy and regulated by an electric circuit28US 5,517,469 AAsulab S. A. · 1996
- Electronic timepiece and control method for an electronic timepiece26US 7,983,116 B2Seiko Epson Corporation · 2011
- Single space wireless parking with improved antenna placements23US 9,494,922 B2J. J. Mackay Canada Limited · 2016