- All sections
- G - Physics
- G04C - Electromechanical clocks or watches
- G04C 10/02 - Arrangements of electric power supplies in time-pieces the power supply being a radioactive source
Patent holdings for IPC class G04C 10/02
Total number of patents in this class: 176
10-year publication summary
|
19
|
13
|
11
|
17
|
22
|
16
|
9
|
16
|
15
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19371 |
50 |
| Casio Computer Co., Ltd. | 3432 |
38 |
| The Swatch Group Research and Development Ltd | 862 |
18 |
| ETA SA Manufacture Horlogere Suisse | 682 |
11 |
| Seiko Watch Corporation | 112 |
11 |
| citizen Watch Co., Ltd. | 1075 |
10 |
| Samsung Electronics Co., Ltd. | 146534 |
5 |
| citizen Holdings Co., Ltd. | 305 |
5 |
| TDK Corporation | 6750 |
3 |
| Garmin Switzerland GmbH | 83 |
3 |
| Nivarox-FAR S.A. | 281 |
3 |
| Kyocera Corporation | 13846 |
2 |
| Boe Technology Group Co., Ltd. | 41267 |
2 |
| Renesas Electronics Corporation | 6006 |
1 |
| Huawei Technologies Co., Ltd. | 113006 |
1 |
| Rohm Co., Ltd. | 6462 |
1 |
| Seiko Instruments Inc. | 504 |
1 |
| CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Developpement | 227 |
1 |
| Kyushu University, National University Corporation | 1657 |
1 |
| National University Corporation Nara Institute of Science and Technology | 235 |
1 |
| Other owners | 8 |