- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/46 - Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained
Patent holdings for IPC class H04M 3/46
Total number of patents in this class: 175
10-year publication summary
|
28
|
22
|
19
|
13
|
17
|
4
|
6
|
1
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 54300 |
9 |
| Movius Interactive Corporation | 54 |
8 |
| Verizon Patent And Licensing Inc. | 7047 |
7 |
| RingCentral, Inc. | 750 |
7 |
| T-Mobile USA, Inc. | 4028 |
7 |
| Qualcomm Incorporated | 84189 |
6 |
| International Business Machines Corporation | 60806 |
6 |
| Huawei Technologies Co., Ltd. | 110438 |
5 |
| British Telecommunications Public Limited Company | 2603 |
4 |
| Yext, Inc. | 166 |
4 |
| Cisco Technology, Inc. | 19591 |
3 |
| Microsoft Technology Licensing, LLC | 53438 |
3 |
| BCE Inc. | 373 |
3 |
| NEC Platforms, Ltd. | 1148 |
3 |
| Rockwilli RMR, LLC | 6 |
3 |
| Smartwatcher Technologies AG | 8 |
3 |
| Vonage Business Inc. | 171 |
3 |
| France Telecom | 1322 |
3 |
| Successful Cultures, Inc | 14 |
3 |
| Sony Ericsson Mobile Communications AB | 1819 |
2 |
| Other owners | 83 |