- 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 1/20 - Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel
Patent holdings for IPC class G04B 1/20
Total number of patents in this class: 8
10-year publication summary
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1
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0
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0
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0
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0
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0
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0
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2
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nivarox-FAR S.A. | 287 |
2 |
| Cartier International AG | 43 |
1 |
| ETA SA Manufacture Horlogere Suisse | 704 |
1 |
| Glashütter Uhrenbetrieb GmbH | 81 |
1 |
| Montres Breguet S.A. | 361 |
1 |
| Rolex S.A. | 725 |
1 |
| Sowind SA | 61 |
1 |
| Other owners | 0 |