- 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
|
95
|
96
|
126
|
149
|
62
|
56
|
23
|
15
|
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. | 9576 |
335 |
| Quantum Wave, LLC | 75 |
27 |
| CPG Technologies, LLC | 99 |
17 |
| Rtx Corporation | 9437 |
10 |
| Sony Corporation | 30936 |
9 |
| Intel Corporation | 47143 |
8 |
| Qualcomm Incorporated | 86346 |
6 |
| Sony Semiconductor Solutions Corporation | 10599 |
6 |
| 3m Innovative Properties Company | 17795 |
5 |
| Samsung Electronics Co., Ltd. | 147501 |
3 |
| Cisco Technology, Inc. | 21991 |
3 |
| Fujikura Ltd. | 2947 |
3 |
| FCI USA LLC | 215 |
3 |
| SkyWave Networks, LLC | 71 |
3 |
| Marvell Asia PTE, Ltd. | 6521 |
3 |
| Apple Inc. | 55387 |
2 |
| The Boeing Company | 20117 |
2 |
| NEC Corporation | 35935 |
2 |
| Ericsson | 21888 |
2 |
| Sharp Corporation | 10274 |
2 |
| Other owners | 104 |