- 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 45/04 - Time-pieces with invisible drive, e.g. with hands attached to rotating glass disc
Patent holdings for IPC class G04B 45/04
Total number of patents in this class: 12
10-year publication summary
|
2
|
0
|
0
|
2
|
1
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2
|
0
|
0
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0
|
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
|
|---|---|---|
| The Swatch Group Research and Development Ltd | 877 |
3 |
| Blancpain S.A. | 127 |
2 |
| Samsung Electronics Co., Ltd. | 159029 |
1 |
| Omega SA | 220 |
1 |
| Preciflex SA | 63 |
1 |
| Richemont International SA | 2934 |
1 |
| Maform Kft. | 2 |
1 |
| Ali & Co Geneve SA | 4 |
1 |
| MDE Designs et Créations SA | 1 |
1 |
| Other owners | 0 |