- 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 19/243 - Clocks or watches with date indicatorsClockwork calendars characterised by the shape of the date indicator
Patent holdings for IPC class G04B 19/243
Total number of patents in this class: 19
10-year publication summary
|
1
|
4
|
0
|
2
|
4
|
0
|
0
|
2
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Patek Philippe SA Geneve | 419 |
4 |
| Seiko Epson Corporation | 20528 |
2 |
| Blancpain S.A. | 127 |
2 |
| Montres Breguet S.A. | 359 |
2 |
| QLOCKTWO License GmbH | 46 |
2 |
| Manufacture D'horlogerie Audemars Piguet SA | 95 |
2 |
| Casio Computer Co., Ltd. | 3515 |
1 |
| ETA SA Manufacture Horlogere Suisse | 703 |
1 |
| Richemont International SA | 2936 |
1 |
| Rolex S.A. | 735 |
1 |
| Greubel Forsey S.A. | 40 |
1 |
| Other owners | 0 |