- All sections
- H - Electricity
- H04B - Transmission
- H04B 3/52 - Systems for transmission between fixed stations via waveguides
Patent holdings for IPC class H04B 3/52
Total number of patents in this class: 555
10-year publication summary
|
108
|
105
|
129
|
149
|
62
|
56
|
23
|
14
|
10
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9499 |
335 |
| Quantum Wave, LLC | 76 |
27 |
| CPG Technologies, LLC | 99 |
17 |
| Rtx Corporation | 9332 |
10 |
| Sony Corporation | 31093 |
9 |
| Intel Corporation | 46949 |
8 |
| Qualcomm Incorporated | 84971 |
6 |
| Sony Semiconductor Solutions Corporation | 10390 |
6 |
| 3m Innovative Properties Company | 17857 |
5 |
| Samsung Electronics Co., Ltd. | 145416 |
3 |
| Cisco Technology, Inc. | 19860 |
3 |
| Fujikura Ltd. | 2921 |
3 |
| FCI USA LLC | 213 |
3 |
| SkyWave Networks, LLC | 70 |
3 |
| Marvell Asia PTE, Ltd. | 6552 |
3 |
| Apple Inc. | 54658 |
2 |
| The Boeing Company | 20042 |
2 |
| NEC Corporation | 35521 |
2 |
| Ericsson | 21704 |
2 |
| Sharp Corporation | 10312 |
2 |
| Other owners | 104 |