- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/487 - Arrangements for providing information services, e.g. recorded voice services or time announcements
Patent holdings for IPC class H04M 3/487
Total number of patents in this class: 495
10-year publication summary
|
64
|
44
|
37
|
29
|
39
|
32
|
14
|
14
|
16
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 35567 |
16 |
| Seven Networks, LLC | 134 |
15 |
| Huawei Technologies Co., Ltd. | 112134 |
11 |
| Thryv, Inc. | 305 |
11 |
| AT&T Intellectual Property I, L.P. | 9507 |
10 |
| Tiktok Pte. Ltd. | 11 |
10 |
| Vusura Technology LLC | 22 |
10 |
| Samsung Electronics Co., Ltd. | 145630 |
9 |
| ZTE Corporation | 42269 |
9 |
| Qualcomm Incorporated | 85094 |
8 |
| Yamaha Corporation | 4087 |
8 |
| Microsoft Technology Licensing, LLC | 53667 |
8 |
| Google LLC | 42096 |
8 |
| Invoca, Inc. | 74 |
8 |
| Zoom Video Communications, Inc. | 562 |
8 |
| Sony Corporation | 31080 |
7 |
| Nokia Corporation | 5657 |
7 |
| NTT DoCoMo, Inc. | 12890 |
6 |
| III Holdings 1, LLC | 185 |
6 |
| Nokia Technologies Oy | 17746 |
6 |
| Other owners | 314 |