- 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 |