G04B 17/00
Mechanisms for stabilising frequency
Official title: Mechanisms for stabilising frequency {(for setting frequency G04B18/00; magnetic G04C5/005; in striking mechanisms G04B21/06; stopping and regulating of the running G04B23/023; electrically driven mechanical regulation G04C3/165; electrical and thermo-electric regulating mechanisms G04C5/00)}
G04B17/00 (Mechanisms for stabilising frequency) appears on 646 US grants and 735 published applications in this corpus.
Search patents in G04B- Granted patents
- 646
- Published applications
- 735
- Assignees
- 134
- Inventors
- 582
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 2 |
| 2003 | 6 | 4 |
| 2004 | 2 | 3 |
| 2005 | 6 | 8 |
| 2006 | 4 | 11 |
| 2007 | 8 | 10 |
| 2008 | 6 | 9 |
| 2009 | 6 | 12 |
| 2010 | 14 | 24 |
| 2011 | 9 | 23 |
| 2012 | 16 | 26 |
| 2013 | 23 | 26 |
| 2014 | 31 | 42 |
| 2015 | 53 | 56 |
| 2016 | 51 | 41 |
| 2017 | 34 | 51 |
| 2018 | 35 | 41 |
| 2019 | 50 | 53 |
| 2020 | 18 | 53 |
| 2021 | 23 | 52 |
| 2022 | 47 | 41 |
| 2023 | 56 | 47 |
| 2024 | 47 | 40 |
| 2025 | 35 | 35 |
| 2026 | 35 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G04B 17/04Oscillators acting by spring tension416
- G04B 17/20Compensation of mechanisms for stabilising frequency279
- G04B 17/32Component parts or constructional details164
- G04B 17/02Oscillators acting by gravity26
- G04B 17/30Rotating governors8
- G04B 17/005Regulating mechanisms where the movement is maintained by pneumatic means1
Recent patents
- Device for autonomously adjusting the active length of a balance spring6 Oct 2026US 12,754,514 B2The Swatch Group Research and Development Ltd
- Part for attaching an outer last coil of a balance spring of a horological movement29 Sep 2026US 12,748,379 B2ETA SA Manufacture Horlogere Suisse
- Compensation of rate variation in a watch29 Sep 2026US 12,748,380 B2Omega SA
- Method for treating a balance spring for a horological movement29 Sep 2026US 12,748,383 B2Nivarox-FAR S. A.
- Elastic holding member for attaching a horological component to a support element22 Sep 2026US 12,743,052 B2Nivarox-FAR S. A.
- Device with adjustable lateral stop for a horology movement8 Oct 2026US 2026/0310133 A1The Swatch Group Research and Development Ltd
- Timepiece move part and timepiece24 Sep 2026US 2026/0288064 A1Seiko Watch Kabushiki Kaisha (Trading AS Seiko Watch Corporation)
- Temperature compensation-type balance with hairspring, movement, and timepiece17 Sep 2026US 2026/0277160 A1Seiko Watch Kabushiki Kaisha (Trading AS Seiko Watch Corporation)
- Method for manufacturing a series of timepiece movements10 Sep 2026US 2026/0267288 A1Breitling SA
- Tourbillon mechanism for a timepiece movement30 Jul 2026US 2026/0219635 A1Greubel Forsey S. A.
Most cited
By later US patents
- Self-compensating balance spring for a mechanical oscillator of a balance-spring/balance assembly of a watch movement and process for manufacturing this balance-spring31US 5,881,026 AMontres Rolex S. A. · 1999
- Watch hairspring and method for making same28US 7,077,562 B2CSEM Centre Suisse d'Electronique et de Microtechnique SA · 2006
- Watch comprising two tourbillons26US 7,527,423 B2Montres Breguet S. A. · 2009
- Mechanical timepiece provided with a tourbillon24US 5,608,694 AOmega SA · 1997
- Watch provided with a tourbillon23US 6,402,368 B1ETA SA Fabriques d'Ebauches · 2002