- 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: 331
10-year publication summary
|
31
|
37
|
29
|
34
|
30
|
27
|
13
|
13
|
15
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36282 |
15 |
| Dolby Laboratories Licensing Corporation | 4205 |
12 |
| Huawei Technologies Co., Ltd. | 116003 |
9 |
| Medtronic, Inc. | 9826 |
7 |
| Asahi Kasei Microdevices Corporation | 558 |
6 |
| Avago Technologies International Sales Pte. Limited | 8653 |
6 |
| Gcoa Co., Ltd. | 27 |
6 |
| Apple Inc. | 56466 |
5 |
| Bose Corporation | 3034 |
5 |
| Telefonaktiebolaget LM Ericsson (publ) | 28486 |
5 |
| Amazon Technologies, Inc. | 27247 |
4 |
| University of Florida Research Foundation, Inc. | 4089 |
4 |
| Nokia Technologies Oy | 19221 |
4 |
| Avatekh, Inc. | 16 |
4 |
| Wilus Institute of Standards and Technology Inc. | 796 |
4 |
| Ericsson | 22003 |
3 |
| Robert Bosch GmbH | 43096 |
3 |
| Cisco Technology, Inc. | 22107 |
3 |
| Mitsubishi Electric Corporation | 46973 |
3 |
| Mediatek Inc. | 5234 |
3 |
| Other owners | 220 |