- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/28 - Automatic routine testing
Patent holdings for IPC class H04M 3/28
Total number of patents in this class: 54
10-year publication summary
|
6
|
13
|
7
|
7
|
8
|
4
|
1
|
5
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cyara Solutions Pty Ltd | 58 |
24 |
| Genesys Telecommunications Laboratories, Inc. | 749 |
7 |
| AT&T Intellectual Property I, L.P. | 9886 |
2 |
| Akamai Technologies, Inc. | 728 |
2 |
| BlackBerry Limited | 5958 |
1 |
| Microsoft Technology Licensing, LLC | 51439 |
1 |
| NTT Communications Corporation | 249 |
1 |
| Nippon Telegraph and Telephone West Corporation | 25 |
1 |
| Nippon Telegraph And Telephone East Corporation | 25 |
1 |
| RingCentral, Inc. | 731 |
1 |
| Blue Jeans Network, Inc. | 18 |
1 |
| Harman International Industries, Incorporated | 2443 |
1 |
| Interactive Intelligence Group, Inc. | 58 |
1 |
| Koninklijke KPN N.V. | 742 |
1 |
| Martello Technologies Corporation | 13 |
1 |
| NEC Platforms, Ltd. | 1106 |
1 |
| Nokia Siemens Networks GmbH & Co. KG | 614 |
1 |
| Pegatron Corporation | 559 |
1 |
| ROHDE & Schwarz GmbH & Co. KG | 1831 |
1 |
| Teradyne, Inc. | 579 |
1 |
| Other owners | 3 |