- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
Patent holdings for IPC class H04R 1/34
Total number of patents in this class: 1351
10-year publication summary
|
83
|
143
|
105
|
155
|
132
|
154
|
128
|
134
|
130
|
90
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shenzhen Shokz Co., Ltd. | 1145 |
101 |
| Bose Corporation | 3001 |
89 |
| Samsung Electronics Co., Ltd. | 147983 |
84 |
| Harman International Industries, Incorporated | 2678 |
54 |
| Apple Inc. | 55640 |
43 |
| Sony Corporation | 30910 |
35 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
28 |
| Google LLC | 42673 |
26 |
| Yamaha Corporation | 4077 |
22 |
| Sony Group Corporation | 14299 |
21 |
| Nippon Telegraph and Telephone Corporation | 16975 |
20 |
| Amazon Technologies, Inc. | 27025 |
18 |
| Dolby Laboratories Licensing Corporation | 4156 |
17 |
| Sonos, Inc. | 2660 |
15 |
| Qsc, LLC | 187 |
14 |
| META Platforms Technologies, LLC | 5948 |
14 |
| LG Electronics Inc. | 73690 |
13 |
| PSS Belgium N.V. | 121 |
12 |
| Pioneer Corporation | 4264 |
11 |
| Goertek Inc. | 2672 |
11 |
| Other owners | 703 |