G04B 1/12
With several mainsprings
Official title: with several mainsprings {(installations with a mainspring and an auxiliary spring G04B1/225; winding-up several mainsprings simultaneously G04B3/008)}
G04B1/12 (With several mainsprings) appears on 39 US grants and 38 published applications in this corpus.
Search patents in G04B- Granted patents
- 39
- Published applications
- 38
- Assignees
- 27
- Inventors
- 74
- Latest grant
- 30 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 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 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 4 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 4 | 0 |
| 2009 | 2 | 1 |
| 2010 | 1 | 5 |
| 2011 | 3 | 4 |
| 2012 | 4 | 1 |
| 2013 | 4 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 3 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 3 | 4 |
| 2020 | 3 | 4 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 4 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Mechanical horological movement with power reserve detection30 Apr 2024US 11,971,687 B2ETA SA Manufacture Horlogere Suisse
- Watch having a first barrel complete with a diameter that is less than a diameter of a second barrel complete5 Dec 2023US 11,835,924 B2Seiko Epson Corporation
- Timepiece mechanism13 Jun 2023US 11,675,313 B2Patek Philippe SA Geneve
- Timepiece10 Jan 2023US 11,550,261 B2Seiko Epson Corporation
- Drive member for a timepiece3 Jan 2023US 11,543,775 B2Patek Philippe SA Geneve
- Hand-setting device for a horological movement26 Jun 2025US 2025/0208577 A1Montres Breguet S. A.
- Mechanical horological movement with power reserve detection5 May 2022US 2022/0137558 A1ETA SA Manufacture Horlogere Suisse
- Watch29 Jul 2021US 2021/0232094 A1Seiko Epson Corporation
- Timepiece mechanism1 Apr 2021US 2021/0096513 A1Patek Philippe SA Geneve
- Timepiece13 Aug 2020US 2020/0257246 A1Seiko Epson Corporation
Most cited
By later US patents
- Digital display with stepping device45US 3,950,939 ADiehl GmbH & Co. · 1976
- Watch mechanism incorporating two barrels28US 4,363,553 ACompagnie des Montres Longines, Francillon S.A. · 1982
- Watch provided with a tourbillon23US 6,402,368 B1ETA SA Fabriques d'Ebauches · 2002
- Device comprising a clock movement and a chronograph module20US 7,905,655 B2LVMH Swiss Manufactures SA · 2011
- Spring, power spring, hair spring, driving mechanism utilizing them, and timepiece19US 6,843,594 B1Seiko Epson Corporation · 2005