- All sections
- H - Electricity
- H03H - Impedance networks, e.g. resonant circuitsresonators
- H03H 21/00 - Adaptive networks
Patent holdings for IPC class H03H 21/00
Total number of patents in this class: 334
10-year publication summary
|
38
|
29
|
35
|
30
|
28
|
14
|
14
|
17
|
10
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 37004 |
15 |
| Dolby Laboratories Licensing Corporation | 4320 |
12 |
| Huawei Technologies Co., Ltd. | 123385 |
9 |
| Medtronic, Inc. | 9792 |
7 |
| Asahi Kasei Microdevices Corporation | 592 |
6 |
| Avago Technologies International Sales Pte. Limited | 8558 |
6 |
| Gcoa Co., Ltd. | 27 |
6 |
| Apple Inc. | 58742 |
5 |
| Bose Corporation | 3092 |
5 |
| Amazon Technologies, Inc. | 28087 |
4 |
| University of Florida Research Foundation, Inc. | 4174 |
4 |
| Nokia Technologies Oy | 21106 |
4 |
| Avatekh, Inc. | 16 |
4 |
| Wilus Institute of Standards and Technology Inc. | 875 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 28758 |
4 |
| Ericsson | 22717 |
3 |
| Robert Bosch GmbH | 44160 |
3 |
| Cisco Technology, Inc. | 22493 |
3 |
| Mitsubishi Electric Corporation | 48018 |
3 |
| NPX B.V. | 2820 |
3 |
| Other owners | 224 |