- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/58 - Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party
Patent holdings for IPC class H04M 3/58
Total number of patents in this class: 319
10-year publication summary
|
26
|
25
|
37
|
32
|
31
|
25
|
14
|
10
|
24
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
14 |
| Avaya Inc. | 1529 |
14 |
| Google LLC | 38759 |
12 |
| Microsoft Technology Licensing, LLC | 51439 |
11 |
| Micro Macro Assets LLC | 16 |
11 |
| ZTE Corporation | 39218 |
10 |
| Apple Inc. | 50209 |
7 |
| 8x8, Inc. | 398 |
7 |
| State Farm Mutual Automobile Insurance Company | 2560 |
7 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| International Business Machines Corporation | 60644 |
6 |
| Verizon Patent And Licensing Inc. | 6900 |
6 |
| Vonage Business Inc. | 171 |
6 |
| Malikie Innovations Limited | 7703 |
6 |
| Research In Motion Limited | 2283 |
5 |
| NEC Corporation | 32703 |
5 |
| RingCentral, Inc. | 731 |
5 |
| Capital One Services, LLC. | 7551 |
5 |
| IPC Systems, Inc. | 60 |
5 |
| Securus Technologies, LLC | 292 |
5 |
| Other owners | 166 |