- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/073 - Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an out-of-service signal
Patent holdings for IPC class H04B 10/073
Total number of patents in this class: 303
10-year publication summary
|
19
|
24
|
22
|
46
|
32
|
25
|
27
|
32
|
31
|
12
|
| 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 |
22 |
| NEC Corporation | 32703 |
20 |
| Ciena Corporation | 1927 |
14 |
| Huawei Technologies Co., Ltd. | 100781 |
11 |
| ZTE Corporation | 39218 |
11 |
| Viavi Solutions Inc. | 1363 |
10 |
| Cisco Technology, Inc. | 18858 |
9 |
| Mitsubishi Electric Corporation | 43934 |
8 |
| Radius Universal LLC | 20 |
8 |
| Teradyne, Inc. | 579 |
8 |
| Fujitsu Limited | 19265 |
6 |
| Juniper Networks, Inc. | 3556 |
6 |
| II-VI Delaware, Inc. | 1720 |
6 |
| Rambus Inc. | 2314 |
5 |
| EXFO Inc. | 165 |
5 |
| Ericsson | 20417 |
4 |
| Corning Incorporated | 9932 |
4 |
| AFL Telecommunications LLC | 656 |
4 |
| Panduit Corp. | 1007 |
4 |
| OptiPulse Inc. | 23 |
4 |
| Other owners | 134 |