G04B 17/20
Compensation of mechanisms for stabilising frequency
G04B17/20 (Compensation of mechanisms for stabilising frequency) appears on 279 US grants and 302 published applications in this corpus.
Search patents in G04B- Granted patents
- 279
- Published applications
- 302
- Assignees
- 74
- Inventors
- 286
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 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 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 4 | 4 |
| 2004 | 2 | 2 |
| 2005 | 5 | 4 |
| 2006 | 2 | 7 |
| 2007 | 4 | 4 |
| 2008 | 4 | 5 |
| 2009 | 5 | 4 |
| 2010 | 8 | 14 |
| 2011 | 5 | 10 |
| 2012 | 7 | 8 |
| 2013 | 11 | 13 |
| 2014 | 9 | 20 |
| 2015 | 22 | 21 |
| 2016 | 17 | 11 |
| 2017 | 16 | 23 |
| 2018 | 20 | 20 |
| 2019 | 20 | 29 |
| 2020 | 7 | 20 |
| 2021 | 9 | 22 |
| 2022 | 27 | 18 |
| 2023 | 23 | 18 |
| 2024 | 19 | 12 |
| 2025 | 11 | 7 |
| 2026 | 13 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device for autonomous adjustment of the active length of a spiral25 Aug 2026US 12,717,279 B2The Swatch Group Research and Development Ltd
- Movement for timepiece and timepiece28 Jul 2026US 12,693,630 B2Tec Ebauches SA
- Process for producing a thermo-compensated oscillator14 Jul 2026US 12,681,435 B2Rolex SA
- Mechanical timepiece30 Jun 2026US 12,669,780 B2Seiko Epson Corporation
- Horological regulating member with balance spring provided with pressure-compensating means9 Jun 2026US 12,650,668 B2The Swatch Group Research and Development Ltd
- Temperature compensation-type balance with hairspring, movement, and timepiece17 Sep 2026US 2026/0277160 A1Seiko Watch Kabushiki Kaisha (Trading AS Seiko Watch Corporation)
- Tourbillon mechanism for a timepiece movement30 Jul 2026US 2026/0219635 A1Greubel Forsey S. A.
- Watch with mechanical movement comprising a rotary-cage regulator25 Jun 2026US 2026/0177978 A1Glashütter Uhrenbetrieb GmbH
- Stepped pallet for an escapement mechanism18 Jun 2026US 2026/0169429 A1ETA SA Manufacture Horlogere Suisse
- Device with a regulating member for a timepiece21 Aug 2025US 2025/0264846 A1Chopard Technologies SA
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 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
- Mechanical timepiece with posture detector18US 6,520,674 B1Seiko Instruments Inc. · 2003