- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/66 - Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
Patent holdings for IPC class H04M 1/66
Total number of patents in this class: 1908
10-year publication summary
|
149
|
125
|
89
|
67
|
56
|
38
|
49
|
21
|
10
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 158605 |
88 |
| Apple Inc. | 59117 |
66 |
| Qualcomm Incorporated | 93006 |
60 |
| Malikie Innovations Limited | 6390 |
53 |
| Huawei Technologies Co., Ltd. | 124379 |
49 |
| Ericsson | 22929 |
46 |
| AT&T Intellectual Property I, L.P. | 10013 |
42 |
| T-Mobile Innovations LLC | 4138 |
37 |
| LG Electronics Inc. | 75910 |
31 |
| T-Mobile USA, Inc. | 4518 |
30 |
| Nokia Technologies Oy | 21548 |
28 |
| NEC Corporation | 37227 |
26 |
| ZTE Corporation | 44288 |
26 |
| Microsoft Technology Licensing, LLC | 54524 |
25 |
| Google LLC | 44674 |
25 |
| Verizon Patent And Licensing Inc. | 7672 |
23 |
| International Business Machines Corporation | 62754 |
21 |
| Alcatel Lucent SA | 1529 |
21 |
| Intel Corporation | 47162 |
19 |
| Kimips LLC | 30 |
19 |
| Other owners | 1173 |