- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/077 - Arrangements for monitoring or testing transmission systems; Arrangements 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: 983
10-year publication summary
|
77
|
100
|
88
|
105
|
98
|
106
|
91
|
106
|
88
|
33
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
94 |
| NEC Corporation | 32703 |
92 |
| Nippon Telegraph and Telephone Corporation | 14195 |
82 |
| Fujitsu Limited | 19265 |
57 |
| Ciena Corporation | 1927 |
28 |
| Infinera Corporation | 620 |
26 |
| Ericsson | 20417 |
24 |
| ZTE Corporation | 39218 |
22 |
| Cisco Technology, Inc. | 18858 |
19 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
19 |
| Eaton Cummins Automated Transmission Technologies LLC | 93 |
17 |
| Mitsubishi Electric Corporation | 43934 |
16 |
| X Development LLC | 1453 |
15 |
| II-VI Delaware, Inc. | 1720 |
13 |
| Juniper Networks, Inc. | 3556 |
12 |
| ADTRAN Networks SE | 181 |
11 |
| Eaton Cummins Automated Transmission Tech., LLC | 11 |
10 |
| Electronics and Telecommunications Research Institute | 8830 |
9 |
| Sumitomo Electric Industries, Ltd. | 14131 |
8 |
| Futurewei Technologies, Inc. | 3708 |
8 |
| Other owners | 401 |