- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/48 - Testing attenuation
Patent holdings for IPC class H04B 3/48
Total number of patents in this class: 62
10-year publication summary
|
9
|
4
|
9
|
4
|
10
|
5
|
7
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 124115 |
7 |
| Cable Television Laboratories, Inc. | 1106 |
4 |
| AT&T Intellectual Property I, L.P. | 10002 |
3 |
| British Telecommunications Public Limited Company | 2604 |
3 |
| Marvell Asia PTE, Ltd. | 6258 |
3 |
| International Business Machines Corporation | 62748 |
2 |
| Igus GmbH | 295 |
2 |
| LEONI Kabel GmbH | 263 |
2 |
| Avago Technologies International Sales Pte. Limited | 8534 |
2 |
| Neuratech Communications Inc. | 2 |
2 |
| Qualcomm Incorporated | 92859 |
1 |
| Illinois Tool Works Inc. | 11862 |
1 |
| Sony Corporation | 30111 |
1 |
| Intel Corporation | 47178 |
1 |
| Hitachi, Ltd. | 16163 |
1 |
| Robert Bosch GmbH | 44254 |
1 |
| Mitsubishi Electric Corporation | 48172 |
1 |
| Nokia Solutions And Networks Oy | 7273 |
1 |
| National Instruments Corporation | 729 |
1 |
| Aware, Inc. | 125 |
1 |
| Other owners | 22 |