G04B 17/22
For the effect of variations of temperature
Official title: for the effect of variations of temperature {(alloys with small expansion coefficient C21C, C22C; adjustment of the regulator dependant on adjustment of the hands G04B18/028; depending on the difference in time with a comparison clockwork G04C11/007)}
G04B17/22 (For the effect of variations of temperature) appears on 71 US grants and 81 published applications in this corpus.
Search patents in G04B- Granted patents
- 71
- Published applications
- 81
- Assignees
- 32
- Inventors
- 111
- Latest grant
- 14 Jul 2026
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 | 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 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 4 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 2 | 5 |
| 2014 | 4 | 7 |
| 2015 | 6 | 5 |
| 2016 | 4 | 1 |
| 2017 | 0 | 8 |
| 2018 | 7 | 7 |
| 2019 | 8 | 7 |
| 2020 | 2 | 4 |
| 2021 | 4 | 6 |
| 2022 | 7 | 5 |
| 2023 | 6 | 4 |
| 2024 | 5 | 5 |
| 2025 | 2 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for producing a thermo-compensated oscillator14 Jul 2026US 12,681,435 B2Rolex SA
- Horological regulating member having a balance spring and provided with temperature- compensation means14 Apr 2026US 12,602,008 B2The Swatch Group Research and Development Ltd
- Regulating horological member with flexible guide provided with temperature-compensation means10 Mar 2026US 12,572,116 B2The Swatch Group Research and Development Ltd
- Hairspring, timepiece movement, and timepiece9 Dec 2025US 12,493,265 B2Seiko Watch Kabushiki Kaisha (Trading AS Seiko Watch Corporation)
- Piezoelectric balance spring, and method for manufacturing the balance spring10 Jun 2025US 12,326,693 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)
- Balance spring for a horological regulating member provided with temperature-dependent adjustment means26 Jun 2025US 2025/0208573 A1Nivarox-FAR S. A.
- Device for separating wound in balance springs after an expansion cycle, and method for manufacturing a balance spring comprising a separation step carried out by such a device19 Jun 2025US 2025/0199475 A1Nivarox-FAR S. A.
- Balance provided with means for adjusting its temperature sensitivity3 Oct 2024US 2024/0329598 A1The Swatch Group Research and Development Ltd
- Protective casing for watch27 Jun 2024US 2024/0210885 A1Omega 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
- Spiral spring made of athermal glass for clockwork movement and method for making same8US 7,753,581 B2The Swatch Group Research and Development Ltd · 2010
- Adjustable auxiliary temperature compensation system8US 9,989,922 B2Montres Breguet S. A. · 2018
- Self-compensating spiral for a spiral balance-wheel in watchwork and process for treating this spiral7US 6,329,066 B1Montres Rolex S. A. · 2001
- Oscillating body, mechanical oscillating system for wrist watches having such an oscillating body and watch having such an oscillating system7US 8,662,742 B2Damasko GmbH · 2014