- All sections
- H - Electricity
- H01Q - Antennas, i.e. radio aerials
- H01Q 21/28 - Combinations of substantially independent non-interacting antenna units or systems
Patent holdings for IPC class H01Q 21/28
Total number of patents in this class: 2990
10-year publication summary
|
245
|
285
|
309
|
254
|
252
|
205
|
197
|
195
|
133
|
86
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 158842 |
178 |
| Huawei Technologies Co., Ltd. | 124630 |
122 |
| Apple Inc. | 59177 |
106 |
| Murata Manufacturing Co., Ltd. | 25893 |
87 |
| Qualcomm Incorporated | 93172 |
77 |
| Outdoor Wireless Networks LLC | 2135 |
46 |
| LG Electronics Inc. | 75973 |
44 |
| Yokowo Co., Ltd. | 580 |
40 |
| Intel Corporation | 46449 |
39 |
| Microsoft Technology Licensing, LLC | 54554 |
38 |
| Sony Corporation | 30080 |
35 |
| Chiun MAI Communication Systems, Inc. | 350 |
33 |
| Fractal Networks LLC | 34 |
32 |
| Panasonic Corporation | 18751 |
25 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
24 |
| Ericsson | 22995 |
22 |
| Raytheon Company | 8443 |
21 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 23560 |
21 |
| WNC Corporation | 612 |
21 |
| ViaSat, Inc. | 1742 |
20 |
| Other owners | 1959 |