- All sections
- H - Electricity
- H01P - Waveguides; resonators, 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: 1111
10-year publication summary
|
86
|
88
|
72
|
80
|
77
|
86
|
121
|
104
|
59
|
18
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
81 |
| Murata Manufacturing Co., Ltd. | 22355 |
66 |
| NEC Corporation | 32703 |
41 |
| KMW Inc. | 626 |
36 |
| CTS Corporation | 274 |
25 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
22 |
| Ericsson | 20417 |
20 |
| ZTE Corporation | 39218 |
19 |
| ACE Technologies Corporation | 139 |
18 |
| TDK Corporation | 6306 |
17 |
| Comba Telecom Technology (Guangzhou) Ltd. | 266 |
16 |
| Samsung Electronics Co., Ltd. | 131630 |
15 |
| Intel Corporation | 45621 |
15 |
| International Business Machines Corporation | 60644 |
13 |
| Kyocera Corporation | 12735 |
13 |
| Gapwaves AB | 69 |
12 |
| Boe Technology Group Co., Ltd. | 35384 |
11 |
| Knowles Cazenovia Inc. | 47 |
9 |
| Lockheed Martin Corporation | 3406 |
8 |
| Thales SA | 2318 |
8 |
| Other owners | 646 |