- 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 17/28 - Compensation of mechanisms for stabilizing frequency for the effect of unbalance of the weights, e.g. tourbillon
Patent holdings for IPC class G04B 17/28
Total number of patents in this class: 115
10-year publication summary
|
12
|
5
|
6
|
11
|
18
|
10
|
9
|
7
|
7
|
0
|
| 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 |
15 |
| ETA SA Manufacture Horlogere Suisse | 638 |
13 |
| Montres Breguet S.A. | 349 |
11 |
| Blancpain S.A. | 111 |
9 |
| CompliTime SA | 54 |
8 |
| Omega SA | 197 |
5 |
| LVMH Swiss manufactures SA | 265 |
4 |
| Patek Philippe SA Geneve | 355 |
4 |
| Tianjin Seagull Watch Co., Ltd. | 14 |
4 |
| Seiko Instruments Inc. | 660 |
3 |
| Glashütter Uhrenbetrieb GmbH | 79 |
3 |
| Harry Winston SA | 817 |
3 |
| HUBLOT SA, Geneve | 151 |
3 |
| Nivarox-FAR S.A. | 265 |
3 |
| Richemont International SA | 1061 |
3 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1434 |
2 |
| Gfpi SA | 28 |
2 |
| Glashuetter Uhrenbetrieb GmbH | 6 |
2 |
| Manufacture Roger Dubuis S.A. | 6 |
2 |
| Marblia Ltd. | 4 |
2 |
| Other owners | 14 |