- 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 15/04 - Cylinder escapements
Patent holdings for IPC class G04B 15/04
Total number of patents in this class: 4
10-year publication summary
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0
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1
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0
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0
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2
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0
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1
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| citizen Watch Co., Ltd. | 1076 |
1 |
| Nivarox-FAR S.A. | 281 |
1 |
| Rolex S.A. | 664 |
1 |
| The Swatch Group Research and Development Ltd | 861 |
1 |
| Other owners | 0 |