- 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: 13
10-year publication summary
|
4
|
2
|
0
|
0
|
2
|
1
|
2
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Swatch Group Research and Development Ltd | 841 |
3 |
| Blancpain S.A. | 117 |
2 |
| Samsung Electronics Co., Ltd. | 145864 |
1 |
| Omega SA | 214 |
1 |
| Preciflex SA | 57 |
1 |
| Quinting SA | 2 |
1 |
| Richemont International SA | 2708 |
1 |
| Maform Kft. | 3 |
1 |
| Ali & Co Geneve SA | 4 |
1 |
| MDE Designs et Créations SA | 1 |
1 |
| Other owners | 0 |