- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/44 - Additional connecting arrangements for providing access to frequently-wanted subscribers, e.g. abbreviated dialling
Patent holdings for IPC class H04M 3/44
Total number of patents in this class: 73
10-year publication summary
|
14
|
14
|
8
|
7
|
3
|
3
|
3
|
2
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 53729 |
6 |
| Zhuangzi Li and Associates | 8 |
5 |
| Amazon Technologies, Inc. | 26716 |
3 |
| BCE Inc. | 374 |
3 |
| Google LLC | 42261 |
3 |
| ZTE Corporation | 42486 |
2 |
| Movius Interactive Corporation | 54 |
2 |
| REBTEL Networks AB | 22 |
2 |
| Orange | 1935 |
2 |
| Thryv, Inc. | 304 |
2 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 997 |
2 |
| Jio Platforms Limited | 1364 |
2 |
| NEC Corporation | 35687 |
1 |
| Hon Hai Precision Industry Co., Ltd. | 4034 |
1 |
| Alcatel-Lucent USA Inc. | 555 |
1 |
| Google Technology Holdings LLC | 2320 |
1 |
| Hyundai Motor Company | 22022 |
1 |
| Avaya Inc. | 1391 |
1 |
| Accenture Global Services Limited | 1534 |
1 |
| Nippon Telegraph and Telephone Corporation | 17346 |
1 |
| Other owners | 31 |