- All sections
- G - Physics
- G04B - Mechanically-driven clocks or watches; mechanical parts of clocks or watches in general; time-pieces using the position of the sun, moon, or stars
- G04B 17/22 - Compensation of mechanisms for stabilizing frequency for the effect of variations of temperature
Patent holdings for IPC class G04B 17/22
Total number of patents in this class: 73
10-year publication summary
|
9
|
5
|
8
|
6
|
10
|
2
|
7
|
2
|
3
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Swatch Group Research and Development Ltd | 778 |
20 |
| Nivarox-FAR S.A. | 265 |
13 |
| Patek Philippe SA Geneve | 355 |
5 |
| Seiko Epson Corporation | 18724 |
4 |
| Seiko Instruments Inc. | 660 |
3 |
| citizen Watch Co., Ltd. | 1062 |
3 |
| Damasko GmbH | 14 |
3 |
| Rolex S.A. | 606 |
3 |
| CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement | 228 |
2 |
| Montres Breguet S.A. | 349 |
2 |
| Asgalium Unitec SA | 3 |
1 |
| Carbontime Limited | 2 |
1 |
| Cartier International AG | 1140 |
1 |
| ETA SA Manufacture Horlogere Suisse | 638 |
1 |
| The Long NOW Foundation | 1 |
1 |
| Manufacture et fabrique de montres et chronometres Ulysse Nardin Le Locle SA | 29 |
1 |
| Master Dynamic Limited | 14 |
1 |
| Richemont International SA | 1061 |
1 |
| Team Smartfish GmbH | 4 |
1 |
| Tronic's Microsystems | 29 |
1 |
| Other owners | 5 |