- 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: 169
10-year publication summary
|
21
|
19
|
11
|
17
|
3
|
4
|
1
|
4
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Apple Inc. | 58049 |
9 |
| Movius Interactive Corporation | 63 |
8 |
| Verizon Patent And Licensing Inc. | 7487 |
7 |
| RingCentral, Inc. | 785 |
7 |
| T-Mobile USA, Inc. | 4388 |
7 |
| Qualcomm Incorporated | 90109 |
6 |
| International Business Machines Corporation | 62182 |
5 |
| British Telecommunications Public Limited Company | 2596 |
4 |
| Huawei Technologies Co., Ltd. | 119891 |
4 |
| Yext, Inc. | 175 |
4 |
| Cisco Technology, Inc. | 22256 |
3 |
| Microsoft Technology Licensing, LLC | 54215 |
3 |
| BCE Inc. | 349 |
3 |
| NEC Platforms, Ltd. | 1066 |
3 |
| Rockwilli RMR, LLC | 6 |
3 |
| Smartwatcher Technologies AG | 8 |
3 |
| Vonage Business Inc. | 178 |
3 |
| France Telecom | 987 |
3 |
| Successful Cultures, Inc | 13 |
3 |
| Sony Ericsson Mobile Communications AB | 1524 |
2 |
| Other owners | 79 |