- 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: 187
10-year publication summary
|
11
|
19
|
7
|
25
|
17
|
18
|
12
|
17
|
16
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 17109 |
24 |
| NEC Corporation | 35291 |
19 |
| Huawei Technologies Co., Ltd. | 110803 |
18 |
| ZTE Corporation | 41969 |
14 |
| ARRIS Enterprises LLC | 3428 |
9 |
| Mitsubishi Electric Corporation | 45752 |
8 |
| PLS Xliv LLC | 36 |
6 |
| Ciena Corporation | 2016 |
5 |
| Cisco Technology, Inc. | 19599 |
4 |
| Viavi Solutions Inc. | 1415 |
4 |
| Sumitomo Electric Industries, Ltd. | 15321 |
3 |
| Fujitsu Limited | 18355 |
3 |
| ARRIS Enterprises, Inc. | 122 |
3 |
| International Business Machines Corporation | 60907 |
2 |
| British Telecommunications Public Limited Company | 2606 |
2 |
| Ericsson | 21565 |
2 |
| Olympus Corporation | 13201 |
2 |
| Accelink Technologies Co., Ltd. | 293 |
2 |
| Fuji Corporation | 3314 |
2 |
| II-VI Delaware, Inc. | 1691 |
2 |
| Other owners | 53 |