- All sections
- G - Physics
- G04R - Radio-controlled time-pieces
- G04R 20/04 - Tuning or receivingCircuits therefor
Patent holdings for IPC class G04R 20/04
Total number of patents in this class: 126
10-year publication summary
|
23
|
10
|
13
|
11
|
10
|
5
|
7
|
4
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19206 |
49 |
| Casio Computer Co., Ltd. | 3422 |
32 |
| citizen Watch Co., Ltd. | 1068 |
8 |
| citizen Holdings Co., Ltd. | 312 |
7 |
| Juniper Networks, Inc. | 3689 |
2 |
| GoPro, Inc. | 1946 |
2 |
| Waymo LLC | 3046 |
2 |
| Skylo Technologies, Inc. | 80 |
2 |
| Airbus Operations S.A.S. | 2460 |
1 |
| ZTE Corporation | 41819 |
1 |
| Nippon Telegraph and Telephone Corporation | 16996 |
1 |
| Hook and Time Co., Ltd. | 1 |
1 |
| Hughes Network Systems, LLC | 1252 |
1 |
| Huizhou TCL Mobile Communication Co., Ltd. | 1101 |
1 |
| Raytheon BBN Technologies Corp. | 103 |
1 |
| Shenzhen Great Power Innovation and Technology Enterprise Co., Ltd. | 14 |
1 |
| Smart Energy Instruments Inc. | 6 |
1 |
| ST-Ericsson SA | 530 |
1 |
| u-blox AG | 233 |
1 |
| Xi'an Jiaotong University | 646 |
1 |
| Other owners | 10 |