- 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: 558
10-year publication summary
|
96
|
126
|
149
|
62
|
56
|
23
|
16
|
10
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 9831 |
335 |
| Quantum Wave, LLC | 75 |
27 |
| CPG Technologies, LLC | 99 |
17 |
| Rtx Corporation | 9851 |
10 |
| Sony Corporation | 30440 |
9 |
| Intel Corporation | 46638 |
8 |
| Qualcomm Incorporated | 90109 |
6 |
| Sony Semiconductor Solutions Corporation | 11206 |
6 |
| 3m Innovative Properties Company | 17511 |
5 |
| NEC Corporation | 36611 |
4 |
| Samsung Electronics Co., Ltd. | 153573 |
3 |
| Cisco Technology, Inc. | 22256 |
3 |
| Fujikura Ltd. | 3038 |
3 |
| FCI USA LLC | 230 |
3 |
| SkyWave Networks, LLC | 58 |
3 |
| Apple Inc. | 58049 |
2 |
| The Boeing Company | 20094 |
2 |
| Ericsson | 22283 |
2 |
| Sharp Corporation | 10455 |
2 |
| Denso Corporation | 25165 |
2 |
| Other owners | 106 |