- All sections
- H - Electricity
- H01P - Waveguidesresonators, lines or other devices of the waveguide type
- H01P 1/20 - Frequency-selective devices, e.g. filters
Patent holdings for IPC class H01P 1/20
Total number of patents in this class: 1180
10-year publication summary
|
72
|
80
|
77
|
86
|
122
|
108
|
67
|
69
|
33
|
33
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 125335 |
96 |
| Murata Manufacturing Co., Ltd. | 25998 |
64 |
| NEC Corporation | 37532 |
41 |
| KMW Inc. | 767 |
41 |
| Ericsson | 23154 |
28 |
| CTS Corporation | 266 |
24 |
| Telefonaktiebolaget LM Ericsson (publ) | 29015 |
23 |
| Samsung Electronics Co., Ltd. | 159473 |
19 |
| ZTE Corporation | 44331 |
19 |
| ACE Technologies Corporation | 143 |
18 |
| Boe Technology Group Co., Ltd. | 44746 |
17 |
| International Business Machines Corporation | 62864 |
16 |
| Comba Telecom Technology (Guangzhou) Ltd. | 298 |
16 |
| TDK Corporation | 7043 |
15 |
| Gapwaves AB | 88 |
13 |
| Kyocera Corporation | 14502 |
11 |
| Intel Corporation | 46327 |
10 |
| Knowles Cazenovia Inc. | 51 |
9 |
| Jiangsu Caiqin Technology Co., Ltd. | 13 |
8 |
| RFS Technologies, Inc. | 113 |
8 |
| Other owners | 684 |