- All sections
- G - Physics
- G04C - Electromechanical clocks or watches
- G04C 11/02 - by radio
Patent holdings for IPC class G04C 11/02
Total number of patents in this class: 70
10-year publication summary
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casio Computer Co., Ltd. | 3372 |
24 |
| Seiko Epson Corporation | 19020 |
19 |
| citizen Watch Co., Ltd. | 1071 |
5 |
| citizen Holdings Co., Ltd. | 324 |
2 |
| Cool River Systems, LLC | 2 |
2 |
| 138 East LCD Advancements Limited | 363 |
2 |
| Hideki Electronics, Inc. (USA) | 2 |
2 |
| BlackBerry Limited | 5869 |
1 |
| Qualcomm Incorporated | 82165 |
1 |
| The Boeing Company | 19922 |
1 |
| Sharp Corporation | 10201 |
1 |
| Oracle International Corporation | 12598 |
1 |
| Seiko Instruments Inc. | 514 |
1 |
| Harris Corporation | 1507 |
1 |
| Trilliant Networks, Inc. | 102 |
1 |
| Computime, Ltd. | 51 |
1 |
| e Ink Corporation | 1432 |
1 |
| Google LLC | 40989 |
1 |
| Quartex, division of Primex, Inc. | 2 |
1 |
| Landis+Gyr Technology, Inc. | 438 |
1 |
| Other owners | 1 |