- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
Patent holdings for IPC class H04R 1/40
Total number of patents in this class: 4574
10-year publication summary
|
274
|
449
|
558
|
588
|
529
|
507
|
419
|
314
|
248
|
156
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30158 |
145 |
| Samsung Electronics Co., Ltd. | 157946 |
138 |
| Bose Corporation | 3092 |
138 |
| Apple Inc. | 58885 |
134 |
| Nokia Technologies Oy | 21300 |
121 |
| Microsoft Technology Licensing, LLC | 54463 |
96 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
89 |
| Yamaha Corporation | 4073 |
83 |
| Harman International Industries, Incorporated | 2878 |
80 |
| Sonos, Inc. | 2864 |
79 |
| Nippon Telegraph and Telephone Corporation | 15923 |
78 |
| Shure Acquisition Holdings, Inc. | 568 |
78 |
| Amazon Technologies, Inc. | 28118 |
76 |
| Biamp Systems, LLC | 378 |
73 |
| META Platforms Technologies, LLC | 6473 |
65 |
| Dolby Laboratories Licensing Corporation | 4328 |
63 |
| Google LLC | 44540 |
51 |
| Huawei Technologies Co., Ltd. | 123543 |
48 |
| Sony Group Corporation | 15697 |
44 |
| Shenzhen Shokz Co., Ltd. | 1413 |
40 |
| Other owners | 2855 |