- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/54 - Arrangements for diverting calls for one subscriber to another predetermined subscriber
Patent holdings for IPC class H04M 3/54
Total number of patents in this class: 683
10-year publication summary
|
98
|
84
|
64
|
60
|
45
|
49
|
37
|
24
|
27
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
28 |
| Huawei Technologies Co., Ltd. | 100781 |
25 |
| RingCentral, Inc. | 731 |
22 |
| Apple Inc. | 50209 |
21 |
| 8x8, Inc. | 398 |
18 |
| International Business Machines Corporation | 60644 |
17 |
| ZTE Corporation | 39218 |
16 |
| Verizon Patent And Licensing Inc. | 6900 |
14 |
| BCE Inc. | 431 |
14 |
| Microsoft Technology Licensing, LLC | 51439 |
13 |
| Mitel Networks Corporation | 455 |
12 |
| AT&T Intellectual Property I, L.P. | 9886 |
11 |
| Micro Macro Assets LLC | 16 |
10 |
| Resight, LLC | 12 |
10 |
| Avaya Inc. | 1529 |
9 |
| Movius Interactive Corporation | 48 |
9 |
| Pantech Corporation | 405 |
8 |
| Qualcomm Incorporated | 76576 |
7 |
| Metaswitch Networks Ltd | 241 |
7 |
| Tango Networks, Inc. | 134 |
7 |
| Other owners | 405 |