- 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: 1053
10-year publication summary
|
100
|
88
|
105
|
98
|
106
|
91
|
110
|
93
|
87
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 34993 |
100 |
| Huawei Technologies Co., Ltd. | 109214 |
99 |
| Nippon Telegraph and Telephone Corporation | 16861 |
91 |
| Fujitsu Limited | 18304 |
55 |
| Ciena Corporation | 2002 |
30 |
| Infinera Corporation | 635 |
27 |
| Ericsson | 21359 |
24 |
| ZTE Corporation | 41673 |
23 |
| Cisco Technology, Inc. | 19551 |
21 |
| Telefonaktiebolaget LM Ericsson (publ) | 27650 |
20 |
| Mitsubishi Electric Corporation | 45414 |
17 |
| II-VI Delaware, Inc. | 1693 |
17 |
| Eaton Cummins Automated Transmission Technologies LLC | 96 |
17 |
| Juniper Networks, Inc. | 3671 |
12 |
| ADTRAN Networks SE | 182 |
11 |
| Sumitomo Electric Industries, Ltd. | 15202 |
10 |
| Electronics and Telecommunications Research Institute | 9182 |
10 |
| Eaton Cummins Automated Transmission Tech., LLC | 11 |
10 |
| Subcom, LLC | 146 |
9 |
| Taara Connect, Inc. | 106 |
9 |
| Other owners | 441 |