G04C
Electromechanical clocks or watches
G04C (Electromechanical clocks or watches) appears on 3,101 US grants and 2,140 published applications in this corpus.
Search patents in G04C- Granted patents
- 3,101
- Published applications
- 2,140
- Assignees
- 640
- Inventors
- 3,725
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 131 | 0 |
| 1977 | 100 | 0 |
| 1978 | 87 | 0 |
| 1979 | 58 | 0 |
| 1980 | 100 | 0 |
| 1981 | 112 | 0 |
| 1982 | 66 | 0 |
| 1983 | 71 | 0 |
| 1984 | 82 | 0 |
| 1985 | 41 | 0 |
| 1986 | 29 | 0 |
| 1987 | 45 | 0 |
| 1988 | 38 | 0 |
| 1989 | 30 | 0 |
| 1990 | 28 | 0 |
| 1991 | 21 | 0 |
| 1992 | 23 | 0 |
| 1993 | 33 | 0 |
| 1994 | 32 | 0 |
| 1995 | 27 | 0 |
| 1996 | 29 | 0 |
| 1997 | 25 | 0 |
| 1998 | 42 | 0 |
| 1999 | 38 | 0 |
| 2000 | 48 | 0 |
| 2001 | 53 | 16 |
| 2002 | 60 | 43 |
| 2003 | 50 | 41 |
| 2004 | 45 | 58 |
| 2005 | 34 | 48 |
| 2006 | 41 | 64 |
| 2007 | 30 | 53 |
| 2008 | 38 | 48 |
| 2009 | 28 | 40 |
| 2010 | 26 | 53 |
| 2011 | 33 | 60 |
| 2012 | 40 | 75 |
| 2013 | 50 | 64 |
| 2014 | 67 | 88 |
| 2015 | 90 | 108 |
| 2016 | 79 | 127 |
| 2017 | 113 | 183 |
| 2018 | 123 | 142 |
| 2019 | 131 | 161 |
| 2020 | 114 | 177 |
| 2021 | 89 | 130 |
| 2022 | 111 | 79 |
| 2023 | 110 | 86 |
| 2024 | 93 | 81 |
| 2025 | 66 | 75 |
| 2026 | 51 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- G04C 3/00Electromechanical clocks or watches independent of other time-pieces and in which the1,594
- G04C 10/00Arrangements of electric power supplies in time-pieces805
- G04C 17/00Indicating the time optically by electric means372
- G04C 21/00Producing acoustic time signals by electrical means198
- G04C 13/00Driving mechanisms for clocks by primary clocks166
- G04C 23/00Clocks with attached or built-in means operating any device at preselected times158
- G04C 9/00Electrically-actuated devices for setting the time-indicating means117
- G04C 11/00Synchronisation of independently-driven clocks94
All 13 main groupsShow fewer
- G04C 5/00Electric or magnetic means for converting oscillatory to rotary motion in time-pieces64
- G04C 19/00Producing optical time signals at prefixed times by electric means37
- G04C 1/00Winding mechanical clocks electrically30
- G04C 15/00Clocks driven by synchronous motors19
- G04C 99/00Subject matter not provided for in other groups of this subclass1
Recent patents
- Mechanical watch29 Sep 2026US 12,748,382 B2Seiko Epson Corporation
- Rotary input mechanism for an electronic device29 Sep 2026US 12,748,388 B2
- Watch with mechanism for absorbing external shocks22 Sep 2026US 12,743,054 B2Casio Computer Co., Ltd.
- Blockchain-based and human characteristics intelligence recognition for appointment visualization elderly care system15 Sep 2026US 12,738,367 B2Jiangsu Zeran Information Technology Co., Ltd
- Dial and method for manufacturing a watch dial25 Aug 2026US 12,717,280 B2The Swatch Group Research and Development Ltd
- Electronic timepiece, drive control method, and recording medium8 Oct 2026US 2026/0310134 A1Casio Computer Co., Ltd.
- Electronic timepiece, drive control method, and recording medium8 Oct 2026US 2026/0310135 A1Casio Computer Co., Ltd.
- Zero-free mod time tracking system8 Oct 2026US 2026/0310136 A1
- Zero-free mod time tracking system8 Oct 2026US 2026/0310137 A1
- Organic-light emitting diode1 Oct 2026US 2026/0298429 A1Pictiva Displays International Limited
Most cited
By later US patents
- Detecting the starting and stopping of movement of a person on foot485US 6,298,314 B1Personal Electronic Devices, Inc. · 2001
- Programming and selection monitoring system for television receivers329US 4,170,782 A1979
- Automatic programming system for television receivers292US 4,081,753 A1978
- Illumination devices for watches and other instruments257US 6,729,738 B2Luminary Logic Ltd. · 2004
- Charging apparatus for an electronic device191US 4,873,677 ASeiko Epson Corporation · 1989