- All sections
- H - Electricity
- H03H - Impedance networks, e.g. resonant circuitsresonators
- H03H 7/09 - Filters comprising mutual inductance
Patent holdings for IPC class H03H 7/09
Total number of patents in this class: 680
10-year publication summary
|
49
|
60
|
60
|
61
|
53
|
50
|
47
|
43
|
31
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 24409 |
248 |
| Mitsubishi Electric Corporation | 45899 |
41 |
| Qorvo US, Inc. | 2203 |
40 |
| Qualcomm Incorporated | 84760 |
26 |
| TDK Corporation | 6689 |
25 |
| Panasonic Intellectual Property Management Co., Ltd. | 31084 |
13 |
| Sumitomo Electric Industries, Ltd. | 15391 |
11 |
| Sumitomo Wiring Systems, Ltd. | 10288 |
10 |
| AutoNetworks Technologies, Ltd. | 6533 |
10 |
| Ericsson | 21642 |
7 |
| Elmec Corporation | 15 |
6 |
| Apple Inc. | 54577 |
5 |
| Panasonic Corporation | 20149 |
5 |
| Intel Corporation | 46833 |
5 |
| Infineon Technologies AG | 8210 |
5 |
| Kabushiki Kaisha Toyota Jidoshokki | 1750 |
5 |
| Hitachi Astemo, Ltd. | 6382 |
5 |
| Siemens AG | 24552 |
4 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42288 |
4 |
| Matsue Elmec Corporation | 6 |
4 |
| Other owners | 201 |