- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/58 - Arrangements for transferring received calls from one subscriber to anotherArrangements 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: 317
10-year publication summary
|
37
|
32
|
31
|
25
|
14
|
10
|
24
|
15
|
13
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 122871 |
13 |
| Avaya Inc. | 958 |
13 |
| Google LLC | 44448 |
13 |
| Micro Macro Assets LLC | 17 |
13 |
| Microsoft Technology Licensing, LLC | 54427 |
12 |
| ZTE Corporation | 44075 |
11 |
| 8x8, Inc. | 458 |
10 |
| Apple Inc. | 58621 |
8 |
| Capital One Services, LLC. | 9961 |
8 |
| State Farm Mutual Automobile Insurance Company | 3414 |
7 |
| Samsung Electronics Co., Ltd. | 157300 |
6 |
| Verizon Patent And Licensing Inc. | 7553 |
6 |
| RingCentral, Inc. | 793 |
6 |
| Vonage Business Inc. | 178 |
6 |
| Malikie Innovations Limited | 6489 |
6 |
| Research In Motion Limited | 1350 |
5 |
| International Business Machines Corporation | 62612 |
5 |
| NEC Corporation | 36860 |
5 |
| CenturyLink Intellectual Property LLC | 1275 |
5 |
| IPC Systems, Inc. | 80 |
5 |
| Other owners | 154 |