- All sections
- H - Electricity
- H04B - Transmission
- H04B 7/0404 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
Patent holdings for IPC class H04B 7/0404
Total number of patents in this class: 1449
10-year publication summary
|
60
|
133
|
176
|
187
|
178
|
173
|
169
|
177
|
133
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 88555 |
289 |
| Samsung Electronics Co., Ltd. | 151017 |
163 |
| LG Electronics Inc. | 74262 |
158 |
| Nokia Technologies Oy | 19589 |
71 |
| Telefonaktiebolaget LM Ericsson (publ) | 28521 |
67 |
| Huawei Technologies Co., Ltd. | 117695 |
53 |
| Apple Inc. | 56891 |
52 |
| Ericsson | 22114 |
40 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 22016 |
35 |
| Interdigital Patent Holdings, Inc. | 6124 |
34 |
| Intel Corporation | 46576 |
23 |
| Skyworks Solutions, Inc. | 3846 |
22 |
| Vivo Mobile Communication Co., Ltd. | 12977 |
20 |
| NTT DoCoMo, Inc. | 13892 |
16 |
| Sony Corporation | 30634 |
13 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 13596 |
12 |
| Electronics and Telecommunications Research Institute | 9408 |
11 |
| ZTE Corporation | 43337 |
10 |
| Lenovo (Singapore) Pte. Ltd. | 3310 |
10 |
| Google LLC | 43386 |
10 |
| Other owners | 340 |