- All sections
- G - Physics
- G04B - Mechanically-driven clocks or watches; mechanical parts of clocks or watches in general; time-pieces using the position of the sun, moon, or stars
- G04B 19/30 - Illumination of dials or hands
Patent holdings for IPC class G04B 19/30
Total number of patents in this class: 97
10-year publication summary
|
14
|
3
|
7
|
7
|
14
|
7
|
6
|
6
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Swatch Group Research and Development Ltd | 778 |
19 |
| Chien, Aaron | 109 |
11 |
| Chien, Te-ju | 109 |
11 |
| Wang, Hsin-yi | 109 |
11 |
| ETA SA Manufacture Horlogere Suisse | 638 |
5 |
| Casio Computer Co., Ltd. | 3343 |
4 |
| Preciflex SA | 53 |
4 |
| Koninklijke Philips N.V. | 22975 |
2 |
| Yazaki Corporation | 6282 |
2 |
| citizen Watch Co., Ltd. | 1062 |
2 |
| Omega SA | 197 |
2 |
| Par Weber LLC | 2 |
2 |
| Seiko Epson Corporation | 18724 |
1 |
| Sharp Corporation | 10015 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Seiko Instruments Inc. | 660 |
1 |
| Kia Motors Corporation | 7946 |
1 |
| Asulab S.A. | 7 |
1 |
| citizen Holdings Co., Ltd. | 332 |
1 |
| e Ink Holdings Inc. | 571 |
1 |
| Other owners | 14 |