- 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 21/00 - Indicating the time by acoustic means
Patent holdings for IPC class G04B 21/00
Total number of patents in this class: 37
10-year publication summary
|
5
|
2
|
0
|
4
|
0
|
1
|
0
|
1
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Montres Breguet S.A. | 350 |
16 |
| Omega SA | 215 |
4 |
| Blancpain S.A. | 122 |
2 |
| Samsung Electronics Co., Ltd. | 147131 |
1 |
| Koninklijke Philips N.V. | 24810 |
1 |
| Micro-Star International Co., Ltd. | 26 |
1 |
| Milus International S.A. | 21 |
1 |
| Montres Jaquet Droz SA | 39 |
1 |
| Montres TUDOR SA | 128 |
1 |
| Patek Philippe SA Geneve | 377 |
1 |
| Richemont International SA | 2730 |
1 |
| Société anonyme de la Manufacture d'horlogerie Audemars Piguet & Cie | 12 |
1 |
| The Swatch Group Research and Development Ltd | 862 |
1 |
| Van Cleef & Arpels S.A. | 11 |
1 |
| Tianjin Seagull Watch Co., Ltd. | 21 |
1 |
| Celsius X VI II | 6 |
1 |
| Current Lighting Solutions, LLC f/k/a GE Lighting Solutions, LLC | 395 |
1 |
| Manufacture D'horlogerie Audemars Piguet SA | 73 |
1 |
| Other owners | 0 |