- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/075 - Arrangements for monitoring or testing transmission systems; Arrangements 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: 171
10-year publication summary
|
22
|
11
|
19
|
7
|
25
|
17
|
18
|
12
|
13
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 14195 |
19 |
| Huawei Technologies Co., Ltd. | 100781 |
18 |
| NEC Corporation | 32703 |
16 |
| ZTE Corporation | 39218 |
14 |
| ARRIS Enterprises LLC | 3432 |
9 |
| Mitsubishi Electric Corporation | 43934 |
6 |
| NEC Asia Pacific Pte. Ltd. | 109 |
6 |
| Ciena Corporation | 1927 |
5 |
| Viavi Solutions Inc. | 1363 |
4 |
| Sumitomo Electric Industries, Ltd. | 14131 |
3 |
| Fujitsu Limited | 19265 |
3 |
| Cisco Technology, Inc. | 18858 |
3 |
| ARRIS Enterprises, Inc. | 122 |
3 |
| International Business Machines Corporation | 60644 |
2 |
| British Telecommunications Public Limited Company | 2575 |
2 |
| Ericsson | 20417 |
2 |
| Olympus Corporation | 13667 |
2 |
| Accelink Technologies Co., Ltd. | 264 |
2 |
| Fuji Corporation | 2924 |
2 |
| II-VI Delaware, Inc. | 1720 |
2 |
| Other owners | 48 |