- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/077 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
Patent holdings for IPC class H04B 10/077
Total number of patents in this class: 1090
10-year publication summary
|
100
|
88
|
104
|
98
|
106
|
89
|
111
|
94
|
87
|
54
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36136 |
104 |
| Huawei Technologies Co., Ltd. | 114620 |
101 |
| Nippon Telegraph and Telephone Corporation | 16791 |
94 |
| Fujitsu Limited | 17689 |
41 |
| Ciena Corporation | 2046 |
32 |
| Infinera Corporation | 639 |
30 |
| Ericsson | 21932 |
25 |
| ZTE Corporation | 42831 |
25 |
| Cisco Technology, Inc. | 22084 |
22 |
| Telefonaktiebolaget LM Ericsson (publ) | 28388 |
20 |
| Mitsubishi Electric Corporation | 46672 |
17 |
| II-VI Delaware, Inc. | 1649 |
17 |
| Eaton Cummins Automated Transmission Technologies LLC | 96 |
17 |
| 1FINITY Inc. | 750 |
14 |
| Juniper Networks, Inc. | 3748 |
12 |
| Sumitomo Electric Industries, Ltd. | 15678 |
11 |
| ADTRAN Networks SE | 186 |
11 |
| Electronics and Telecommunications Research Institute | 9458 |
10 |
| Eaton Cummins Automated Transmission Tech., LLC | 11 |
10 |
| Google LLC | 42794 |
9 |
| Other owners | 468 |