- 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 9/00 - Supervision of the state of winding, e.g. indicating the amount of winding
Patent holdings for IPC class G04B 9/00
Total number of patents in this class: 36
10-year publication summary
|
2
|
3
|
1
|
3
|
1
|
3
|
8
|
3
|
0
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ETA SA Manufacture Horlogere Suisse | 638 |
9 |
| Montres Breguet S.A. | 349 |
8 |
| Seiko Epson Corporation | 18724 |
3 |
| Blancpain S.A. | 111 |
3 |
| The Swatch Group Research and Development Ltd | 778 |
3 |
| Chronométrie Ferdinand Berthoud SA | 13 |
1 |
| Glashütter Uhrenbetrieb GmbH | 79 |
1 |
| Montres Jaquet Droz SA | 38 |
1 |
| Parmigiani Fleurier SA | 78 |
1 |
| Vaucher Manufacture Fleurier S.A. | 19 |
1 |
| Pylote | 21 |
1 |
| Montre Liquide AG | 3 |
1 |
| Frederic Piguet S.A. | 6 |
1 |
| Watch-U-License AG | 1 |
1 |
| Dalton Properties Inc | 5 |
1 |
| Other owners | 0 |