- All sections
- H - Electricity
- H04B - Transmission
- H04B 10/275 - Ring-type networks
Patent holdings for IPC class H04B 10/275
Total number of patents in this class: 122
10-year publication summary
|
14
|
9
|
15
|
11
|
14
|
11
|
17
|
6
|
10
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 14195 |
20 |
| Fujitsu Limited | 19265 |
9 |
| Huawei Technologies Co., Ltd. | 100781 |
9 |
| ZTE Corporation | 39218 |
8 |
| International Business Machines Corporation | 60644 |
6 |
| NEC Corporation | 32703 |
4 |
| Hewlett Packard Enterprise Development LP | 10702 |
4 |
| CommScope Technologies LLC | 4937 |
4 |
| Hfr, Inc. | 23 |
3 |
| Solid, Inc. | 302 |
3 |
| Mitsubishi Electric Corporation | 43934 |
2 |
| Amazon Technologies, Inc. | 24422 |
2 |
| Delta Electronics, Inc. | 2401 |
2 |
| Cable Television Laboratories, Inc. | 876 |
2 |
| Cox Communications, Inc. | 471 |
2 |
| Google LLC | 38759 |
2 |
| Ranovus Inc. | 31 |
2 |
| Xi'an Zhongxing New Software Co., Ltd. | 630 |
2 |
| Safran Electrical & Power | 507 |
2 |
| DeGirum Corporation | 21 |
2 |
| Other owners | 32 |