- All sections
- H - Electricity
- H04B - Transmission
- H04B 1/20 - Circuits for coupling gramophone pick-up, recorder output, or microphone to receiver
Patent holdings for IPC class H04B 1/20
Total number of patents in this class: 179
10-year publication summary
|
13
|
12
|
14
|
16
|
8
|
2
|
9
|
2
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sonos, Inc. | 2787 |
19 |
| Universal Electronics Inc. | 851 |
11 |
| Shure Acquisition Holdings, Inc. | 556 |
10 |
| Yamaha Corporation | 4067 |
5 |
| Nokia Technologies Oy | 20244 |
4 |
| Adeia Media Holdings LLC | 606 |
4 |
| Apple Inc. | 58049 |
3 |
| LG Electronics Inc. | 74953 |
3 |
| Sony Corporation | 30440 |
3 |
| Bose Corporation | 3077 |
3 |
| Gentex Corporation | 1942 |
3 |
| Google LLC | 43739 |
3 |
| Airborne Media Group | 3 |
3 |
| Samsung Electronics Co., Ltd. | 153573 |
2 |
| Honeywell International Inc. | 12796 |
2 |
| Intel Corporation | 46638 |
2 |
| Koninklijke Philips Electronics N.V. | 8057 |
2 |
| Thomson Licensing | 3290 |
2 |
| Xilinx, Inc. | 3928 |
2 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5173 |
2 |
| Other owners | 91 |