- All sections
- H - Electricity
- H04R - Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems
- H04R 27/00 - Public address systems
Patent holdings for IPC class H04R 27/00
Total number of patents in this class: 1897
10-year publication summary
|
247
|
179
|
236
|
252
|
189
|
152
|
145
|
151
|
128
|
59
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sonos, Inc. | 2560 |
659 |
| Bose Corporation | 2970 |
59 |
| Dolby Laboratories Licensing Corporation | 4098 |
55 |
| Amazon Technologies, Inc. | 26519 |
34 |
| Yamaha Corporation | 4096 |
33 |
| Sound United, LLC | 81 |
30 |
| Harman International Industries, Incorporated | 2615 |
25 |
| Google LLC | 41903 |
23 |
| Shure Acquisition Holdings, Inc. | 515 |
22 |
| Samsung Electronics Co., Ltd. | 144426 |
21 |
| B & W Group Ltd | 352 |
21 |
| Sony Corporation | 31138 |
19 |
| Apple Inc. | 54527 |
18 |
| Microsoft Technology Licensing, LLC | 53545 |
18 |
| Biamp Systems, LLC | 237 |
18 |
| Qualcomm Incorporated | 84634 |
16 |
| Hewlett-Packard Development Company, L.P. | 25940 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
15 |
| Honeywell International Inc. | 13562 |
12 |
| Robert Bosch GmbH | 42505 |
12 |
| Other owners | 772 |