- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/075 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal
Patent holdings for IPC class H04B 10/075
Total number of patents in this class: 197
10-year publication summary
|
19
|
7
|
25
|
17
|
18
|
12
|
17
|
17
|
12
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 15928 |
26 |
| NEC Corporation | 37064 |
21 |
| Huawei Technologies Co., Ltd. | 123677 |
17 |
| ZTE Corporation | 44219 |
14 |
| ARRIS Enterprises LLC | 3404 |
9 |
| Mitsubishi Electric Corporation | 48097 |
8 |
| Radiant Patents LLC | 40 |
6 |
| Ciena Corporation | 2188 |
5 |
| Ntt, Inc. | 4226 |
5 |
| Cisco Technology, Inc. | 22521 |
4 |
| Viavi Solutions Inc. | 1528 |
4 |
| Sumitomo Electric Industries, Ltd. | 16396 |
3 |
| ARRIS Enterprises, Inc. | 121 |
3 |
| International Business Machines Corporation | 62672 |
2 |
| British Telecommunications Public Limited Company | 2604 |
2 |
| Ericsson | 22815 |
2 |
| Fujitsu Limited | 16867 |
2 |
| Olympus Corporation | 12932 |
2 |
| Accelink Technologies Co., Ltd. | 332 |
2 |
| Fuji Corporation | 3659 |
2 |
| Other owners | 58 |