- 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 |