G04C 3/00
Electromechanical clocks or watches independent of other time-pieces and in which the
Official title: Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C15/00)
G04C3/00 (Electromechanical clocks or watches independent of other time-pieces and in which the) appears on 1,594 US grants and 1,068 published applications in this corpus.
Search patents in G04C- Granted patents
- 1,594
- Published applications
- 1,068
- Assignees
- 317
- Inventors
- 1,888
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 63 | 0 |
| 1977 | 48 | 0 |
| 1978 | 43 | 0 |
| 1979 | 24 | 0 |
| 1980 | 53 | 0 |
| 1981 | 63 | 0 |
| 1982 | 43 | 0 |
| 1983 | 44 | 0 |
| 1984 | 54 | 0 |
| 1985 | 31 | 0 |
| 1986 | 15 | 0 |
| 1987 | 23 | 0 |
| 1988 | 23 | 0 |
| 1989 | 18 | 0 |
| 1990 | 17 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 16 | 0 |
| 1994 | 21 | 0 |
| 1995 | 19 | 0 |
| 1996 | 16 | 0 |
| 1997 | 13 | 0 |
| 1998 | 18 | 0 |
| 1999 | 21 | 0 |
| 2000 | 21 | 0 |
| 2001 | 20 | 11 |
| 2002 | 27 | 18 |
| 2003 | 20 | 16 |
| 2004 | 16 | 32 |
| 2005 | 16 | 24 |
| 2006 | 15 | 27 |
| 2007 | 13 | 24 |
| 2008 | 18 | 25 |
| 2009 | 13 | 18 |
| 2010 | 16 | 29 |
| 2011 | 13 | 33 |
| 2012 | 25 | 28 |
| 2013 | 20 | 28 |
| 2014 | 26 | 35 |
| 2015 | 40 | 44 |
| 2016 | 25 | 59 |
| 2017 | 44 | 98 |
| 2018 | 65 | 73 |
| 2019 | 71 | 92 |
| 2020 | 60 | 95 |
| 2021 | 58 | 65 |
| 2022 | 73 | 43 |
| 2023 | 57 | 45 |
| 2024 | 50 | 44 |
| 2025 | 38 | 39 |
| 2026 | 22 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G04C 3/14Incorporating a stepping motor651
- G04C 3/001Electromechanical switches for setting or display527
- G04C 3/008Mounting, assembling of components258
- G04C 3/08Wherein movement is regulated by a mechanical oscillator other than a pendulum127
- G04C 3/04Wherein movement is regulated by a balance83
- G04C 3/16Incorporating an electro-dynamic continuously rotating motor42
- G04C 3/02Wherein movement is regulated by a pendulum15
- G04C 3/18Incorporating electro-thermal or electro-pneumatic driving means0
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.
- Microelectromechanical system for moving a mechanical part in two opposite directions11 Aug 2026US 12,706,551 B2Centre National de la Recherche Scientifique (CNRS)
- Interacting with an electronic device through physical movement23 Jun 2026US 12,663,881 B2Apple Inc.
- 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
- Interacting with an electronic device through physical movement1 Oct 2026US 2026/0299710 A1Apple Inc.
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
- Conductive elastomeric contacts and connectors186US 3,971,610 ATechnical Wire Products, Inc. · 1976
- Exercise measuring instrument169US 4,962,469 ACasio Computer Co., Ltd. · 1990
- Modular movement that is fully functional standalone and interchangeable in other portable devices163US 7,946,758 B2WIMM Labs, Inc. · 2011
- Rotary input mechanism for an electronic device145US 9,753,436 B2Apple Inc. · 2017