- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 3/51 - Centralised call answering arrangements requiring operator intervention
Patent holdings for IPC class H04M 3/51
Total number of patents in this class: 4088
10-year publication summary
|
315
|
456
|
485
|
443
|
481
|
446
|
536
|
574
|
387
|
83
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Genesys Telecommunications Laboratories, Inc. | 780 |
297 |
| Avaya Inc. | 2481 |
217 |
| Afiniti, Ltd. | 281 |
138 |
| United Services Automobile Association (USAA) | 2062 |
112 |
| Noble Systems Corporation | 203 |
111 |
| Motorola Solutions, Inc. | 4280 |
78 |
| Capital One Services, LLC. | 5965 |
76 |
| Nice Ltd. | 342 |
76 |
| Verint Americas Inc. | 514 |
68 |
| International Business Machines Corporation | 63296 |
57 |
| AT&T Intellectual Property I, L.P. | 11295 |
54 |
| Wells Fargo Bank, National Association | 2171 |
47 |
| Verizon Patent And Licensing Inc. | 6935 |
42 |
| T-Mobile USA, Inc. | 3293 |
42 |
| Virtual Hold Technology Solutions, LLC | 108 |
41 |
| ZTE Corporation | 36628 |
40 |
| State Farm Mutual Automobile Insurance Company | 2057 |
40 |
| Wells Fargo Capital Finance, LLC | 86 |
39 |
| West Corporation | 357 |
39 |
| [24]7.ai, Inc. | 184 |
39 |
| Other owners | 2435 |