- All sections
- G - Physics
- G04B - Mechanically-driven clocks or watchesmechanical parts of clocks or watches in generaltime-pieces using the position of the sun, moon, or stars
- G04B 17/20 - Compensation of mechanisms for stabilizing frequency
Patent holdings for IPC class G04B 17/20
Total number of patents in this class: 44
10-year publication summary
|
5
|
2
|
2
|
3
|
1
|
3
|
3
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Swatch Group Research and Development Ltd | 865 |
13 |
| Nivarox-FAR S.A. | 282 |
10 |
| ETA SA Manufacture Horlogere Suisse | 683 |
6 |
| CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement | 228 |
2 |
| Intersil Americas LLC | 402 |
2 |
| Seiko Epson Corporation | 19806 |
1 |
| ABB Schweiz AG | 7313 |
1 |
| Asgalium Unitec SA | 3 |
1 |
| Hublot SA | 4 |
1 |
| Montres Breguet S.A. | 345 |
1 |
| Omega SA | 219 |
1 |
| Patek Philippe SA Geneve | 383 |
1 |
| Rolex S.A. | 699 |
1 |
| Team Smartfish GmbH | 3 |
1 |
| Firehouse Horology, Inc. | 1 |
1 |
| Seiko Watch Corporation | 112 |
1 |
| Other owners | 0 |