- 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: 55
10-year publication summary
|
7
|
7
|
8
|
4
|
1
|
7
|
3
|
1
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cyara Solutions Pty Ltd | 71 |
25 |
| Genesys Cloud Services, Inc., FORMERLY Genesys Telecommunications Laboratories, Inc. | 1114 |
8 |
| AT&T Intellectual Property I, L.P. | 10002 |
2 |
| BlackBerry Limited | 4875 |
1 |
| Microsoft Technology Licensing, LLC | 54510 |
1 |
| NTT Communications Corporation | 226 |
1 |
| Nippon Telegraph and Telephone West Corporation | 14 |
1 |
| Nippon Telegraph And Telephone East Corporation | 24 |
1 |
| RingCentral, Inc. | 792 |
1 |
| ADTRAN GmbH | 27 |
1 |
| Akamai Technologies, Inc. | 781 |
1 |
| American Express Travel Related Services Company, Inc. | 1256 |
1 |
| Blue Jeans Network, Inc. | 16 |
1 |
| Harman International Industries, Incorporated | 2884 |
1 |
| Martello Technologies Corporation | 12 |
1 |
| NEC Platforms, Ltd. | 1068 |
1 |
| Pegatron Corporation | 623 |
1 |
| ROHDE & Schwarz GmbH & Co. KG | 1996 |
1 |
| Volkswagen Aktiengesellschaft | 213 |
1 |
| X Development LLC | 1396 |
1 |
| Other owners | 3 |