- 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: 169
10-year publication summary
|
13
|
12
|
14
|
16
|
8
|
2
|
10
|
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. | 2864 |
19 |
| Universal Electronics Inc. | 852 |
11 |
| Shure Acquisition Holdings, Inc. | 568 |
10 |
| Yamaha Corporation | 4073 |
5 |
| Nokia Technologies Oy | 21300 |
4 |
| Apple Inc. | 58885 |
3 |
| LG Electronics Inc. | 75818 |
3 |
| Sony Corporation | 30158 |
3 |
| Bose Corporation | 3092 |
3 |
| Gentex Corporation | 1967 |
3 |
| Google LLC | 44540 |
3 |
| Airborne Media Group | 3 |
3 |
| Adeia Media Holdings Inc. | 911 |
3 |
| Samsung Electronics Co., Ltd. | 157946 |
2 |
| Honeywell International Inc. | 12772 |
2 |
| Intel Corporation | 47122 |
2 |
| Koninklijke Philips Electronics N.V. | 7398 |
2 |
| Xilinx, Inc. | 3945 |
2 |
| The Board of Trustees of the University of Illinois | 2746 |
2 |
| Creative Technology Ltd | 446 |
2 |
| Other owners | 82 |