- 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: 1479
10-year publication summary
|
60
|
137
|
178
|
190
|
179
|
173
|
171
|
178
|
133
|
43
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 90374 |
297 |
| LG Electronics Inc. | 75045 |
164 |
| Samsung Electronics Co., Ltd. | 154120 |
163 |
| Nokia Technologies Oy | 20346 |
83 |
| Telefonaktiebolaget LM Ericsson (publ) | 28623 |
67 |
| Apple Inc. | 58122 |
53 |
| Huawei Technologies Co., Ltd. | 120453 |
53 |
| Ericsson | 22306 |
40 |
| Interdigital Patent Holdings, Inc. | 6513 |
35 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 22633 |
35 |
| Intel Corporation | 46681 |
23 |
| Skyworks Solutions, Inc. | 3892 |
22 |
| Vivo Mobile Communication Co., Ltd. | 13309 |
21 |
| NTT DoCoMo, Inc. | 14283 |
16 |
| Sony Corporation | 30388 |
13 |
| Beijing Xiaomi Mobile Software Co., Ltd. | 14252 |
12 |
| Electronics and Telecommunications Research Institute | 9520 |
11 |
| ZTE Corporation | 43624 |
10 |
| Lenovo (Singapore) Pte. Ltd. | 3307 |
10 |
| Google LLC | 43852 |
10 |
| Other owners | 341 |