G04C 5/00
Electric or magnetic means for converting oscillatory to rotary motion in time-pieces
Official title: Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements (regulators G04C3/00)
G04C5/00 (Electric or magnetic means for converting oscillatory to rotary motion in time-pieces) appears on 64 US grants and 68 published applications in this corpus.
Search patents in G04C- Granted patents
- 64
- Published applications
- 68
- Assignees
- 23
- Inventors
- 86
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 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 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 11 |
| 2016 | 6 | 11 |
| 2017 | 12 | 14 |
| 2018 | 10 | 6 |
| 2019 | 10 | 2 |
| 2020 | 1 | 5 |
| 2021 | 1 | 4 |
| 2022 | 1 | 2 |
| 2023 | 8 | 0 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Mechanical timepiece30 Sep 2025US 12,429,827 B2Citizen Watch Co., Ltd.
- Horological movement comprising an escapement provided with a magnetic system23 Jul 2024US 12,045,011 B2The Swatch Group Research and Development Ltd
- Corrosion-inhibiting protection for watch magnets, in particular neodymium-iron-boron magnets18 Jun 2024US 12,012,651 B2Comadur SA
- Horological movement comprising an escapement equipped with a magnetic system30 Jan 2024US 11,886,146 B2The Swatch Group Research and Development Ltd
- Timepiece movement comprising a rotating element provided with a magnetized structure having a periodic configuration21 Nov 2023US 11,822,294 B2The Swatch Group Research and Development Ltd
- Mechanical timepiece5 Jun 2025US 2025/0181035 A1Citizen Watch Co., Ltd.
- Mechanical timepiece18 Apr 2024US 2024/0126212 A1Citizen Watch Co., Ltd.
- Corrosion-inhibiting protection for watch magnets, in particular neodymium-iron-boron magnets19 May 2022US 2022/0154327 A1Comadur SA
- Magnetically Coupled Dead24 Feb 2022US 2022/0057756 A1
- Horological movement comprising an escapement provided with a magnetic system23 Sep 2021US 2021/0294268 A1The Swatch Group Research and Development Ltd
Most cited
By later US patents
- Oscillating reed electric motors92US 4,056,743 AHorstmann Clifford Magnetics Ltd. · 1977
- Method and system for authenticating a device26US 9,772,607 B2Sicpa Holding SA · 2017
- Contactless cylinder escapement mechanism for timepieces16US 9,746,829 B2Nivarox-FAR S. A. · 2017
- Regulating element for wristwatch and mechanical movement comprising one such regulating element10US 7,396,154 B2Tag Heuer SA · 2008
- Connector-free magnetic charger/winder10US 9,450,446 B2Apple Inc. · 2016