- 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: 713
10-year publication summary
|
60
|
60
|
61
|
52
|
50
|
48
|
44
|
39
|
19
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Murata Manufacturing Co., Ltd. | 25464 |
257 |
| Mitsubishi Electric Corporation | 47522 |
41 |
| Qorvo US, Inc. | 2360 |
40 |
| TDK Corporation | 6805 |
27 |
| Qualcomm Incorporated | 89928 |
26 |
| Panasonic Intellectual Property Management Co., Ltd. | 33401 |
17 |
| Sumitomo Electric Industries, Ltd. | 16061 |
12 |
| Sumitomo Wiring Systems, Ltd. | 10752 |
11 |
| AutoNetworks Technologies, Ltd. | 6910 |
11 |
| Ericsson | 22247 |
7 |
| Apple Inc. | 57989 |
6 |
| Elmec Corporation | 15 |
6 |
| Panasonic Corporation | 19786 |
5 |
| Intel Corporation | 46673 |
5 |
| Infineon Technologies AG | 8380 |
5 |
| BAE Systems Controls Inc. | 228 |
5 |
| Skyworks Solutions, Inc. | 3883 |
5 |
| Kabushiki Kaisha Toyota Jidoshokki | 1794 |
5 |
| Quantalrf AG | 27 |
5 |
| Hitachi Astemo, Ltd. | 6404 |
5 |
| Other owners | 212 |