G04D 7/10
Measuring, counting, calibrating, testing or regulating apparatus: for hairsprings of balances
Official title: for hairsprings {of balances}
G04D7/10 (Measuring, counting, calibrating, testing or regulating apparatus: for hairsprings of balances) appears on 18 US grants and 23 published applications in this corpus.
Search patents in G04D- Granted patents
- 18
- Published applications
- 23
- Assignees
- 11
- Inventors
- 43
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 1 | 4 |
| 2018 | 2 | 0 |
| 2019 | 3 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 5 |
| 2026 | 2 | 2 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Method for testing and manufacturing spiral springs for a timepiece23 Jun 2026US 12,663,760 B2Richemont International SA
- Method for manufacturing a sprung balance oscillator for high torque variation balance springs12 May 2026US 12,625,467 B2Nivarox-FAR S. A.
- Method for manufacturing horological balance springs25 Nov 2025US 12,481,248 B2Nivarox-FAR S. A.
- Method and production support tooling for measuring the torque of a timepiece balance spring5 Mar 2024US 11,921,468 B2Nivarox-FAR S. A.
- Method for manufacturing a plurality of resonators in a wafer25 Jul 2023US 11,709,431 B2Richemont International SA
- Method for manufacturing a series of timepiece movements10 Sep 2026US 2026/0267288 A1Breitling SA
- Method for manufacturing an oscillating member18 Jun 2026US 2026/0169440 A1Nivarox-FAR S. A.
- Method for manufacturing silicon balance springs4 Dec 2025US 2025/0370350 A1Sercalo Microtechnology Limited
- Method for manufacturing horological balance springs19 Jun 2025US 2025/0199476 A1Nivarox-FAR S. A.
- Method for manufacturing a sprung balance oscillator for high torque variation balance springs22 May 2025US 2025/0164930 A1Nivarox-FAR S. A.
Most cited
By later US patents
- Fixation of a spiral spring in a watch movement7US 8,147,127 B2Manufacture Roger Dubuis S.A. · 2012
- Circuit for autoregulating the oscillation frequency of an oscillating mechanical system and device including the same4US 9,188,957 B2The Swatch Group Research and Development Ltd · 2015
- Method of adjusting the oscillation frequency of a timepiece sub-assembly4US 9,235,192 B2Nivarox-FAR S. A. · 2016
- Method for adjusting the oscillation frequency of a sprung balance for a mechanical timepiece3US 6,534,742 B2ETA SA Fabriques d'Ebauches · 2003
- Device for measuring the torque of a hairspring3US 8,528,421 B2Rolex SA · 2013