- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/57 - Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
Patent holdings for IPC class H04M 1/57
Total number of patents in this class: 837
10-year publication summary
|
116
|
78
|
65
|
46
|
87
|
51
|
40
|
24
|
20
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 147131 |
48 |
| Apple Inc. | 55287 |
39 |
| Microsoft Technology Licensing, LLC | 53829 |
39 |
| First Orion Corp. | 172 |
27 |
| Huawei Technologies Co., Ltd. | 113340 |
22 |
| ZTE Corporation | 42628 |
21 |
| Digital Reef, Inc. | 23 |
21 |
| AT&T Intellectual Property I, L.P. | 9550 |
17 |
| Malikie Innovations Limited | 7099 |
17 |
| Sony Ericsson Mobile Communications AB | 1761 |
15 |
| Qualcomm Incorporated | 86023 |
14 |
| T-Mobile USA, Inc. | 4148 |
13 |
| LG Electronics Inc. | 73393 |
12 |
| Kyocera Corporation | 13884 |
12 |
| Xiaomi Inc. | 1714 |
12 |
| AccuData, Inc., a Michigan corporation, | 15 |
12 |
| Capital One Services, LLC. | 9227 |
12 |
| International Business Machines Corporation | 61353 |
11 |
| YouMail, Inc. | 53 |
11 |
| BCE Inc. | 398 |
10 |
| Other owners | 452 |