- 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: 1075
10-year publication summary
|
100
|
88
|
105
|
98
|
106
|
91
|
111
|
96
|
88
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 35652 |
103 |
| Huawei Technologies Co., Ltd. | 112438 |
101 |
| Nippon Telegraph and Telephone Corporation | 17341 |
92 |
| Fujitsu Limited | 18351 |
56 |
| Ciena Corporation | 2030 |
30 |
| Infinera Corporation | 636 |
29 |
| Ericsson | 21747 |
24 |
| ZTE Corporation | 42423 |
24 |
| Cisco Technology, Inc. | 19918 |
21 |
| Telefonaktiebolaget LM Ericsson (publ) | 27928 |
20 |
| Mitsubishi Electric Corporation | 46093 |
17 |
| II-VI Delaware, Inc. | 1680 |
17 |
| Eaton Cummins Automated Transmission Technologies LLC | 94 |
17 |
| Juniper Networks, Inc. | 3734 |
12 |
| Sumitomo Electric Industries, Ltd. | 15483 |
11 |
| ADTRAN Networks SE | 184 |
11 |
| Electronics and Telecommunications Research Institute | 9381 |
10 |
| Eaton Cummins Automated Transmission Tech., LLC | 11 |
10 |
| Google LLC | 42196 |
9 |
| Subcom, LLC | 151 |
9 |
| Other owners | 452 |