- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; deaf-aid sets; public 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: 4074
10-year publication summary
162
|
220
|
274
|
449
|
558
|
588
|
527
|
494
|
402
|
116
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sony Corporation | 32931 |
146 |
Bose Corporation | 2880 |
128 |
Apple Inc. | 50209 |
120 |
Samsung Electronics Co., Ltd. | 131630 |
116 |
Nokia Technologies Oy | 15057 |
115 |
Yamaha Corporation | 4054 |
110 |
Microsoft Technology Licensing, LLC | 51439 |
86 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
85 |
Nippon Telegraph and Telephone Corporation | 14195 |
74 |
Sonos, Inc. | 2274 |
64 |
Amazon Technologies, Inc. | 24422 |
63 |
Harman International Industries, Incorporated | 2443 |
61 |
Shure Acquisition Holdings, Inc. | 449 |
55 |
Dolby Laboratories Licensing Corporation | 3883 |
52 |
META Platforms Technologies, LLC | 4806 |
52 |
Huawei Technologies Co., Ltd. | 100781 |
44 |
Biamp Systems, LLC | 213 |
42 |
Google LLC | 38759 |
41 |
Qualcomm Incorporated | 76576 |
35 |
Hewlett-Packard Development Company, L.P. | 28538 |
34 |
Other owners | 2551 |