- 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: 4344
10-year publication summary
|
456
|
485
|
443
|
479
|
447
|
539
|
584
|
410
|
382
|
89
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Genesys Telecommunications Laboratories, Inc. | 749 |
287 |
| Avaya Inc. | 1529 |
185 |
| Afiniti, Ltd. | 299 |
148 |
| Alvaria Cayman (cx) | 322 |
139 |
| United Services Automobile Association (USAA) | 2514 |
135 |
| Capital One Services, LLC. | 7551 |
95 |
| Nice Ltd. | 385 |
91 |
| Motorola Solutions, Inc. | 4355 |
86 |
| Verint Americas Inc. | 540 |
70 |
| Virtual Hold Technology Solutions, LLC | 143 |
68 |
| International Business Machines Corporation | 60644 |
56 |
| Wells Fargo Bank, National Association | 2945 |
56 |
| Microsoft Technology Licensing, LLC | 51439 |
53 |
| West Technology Group, LLC | 414 |
52 |
| 8x8, Inc. | 398 |
51 |
| AT&T Intellectual Property I, L.P. | 9886 |
48 |
| State Farm Mutual Automobile Insurance Company | 2560 |
48 |
| T-Mobile USA, Inc. | 3668 |
47 |
| Verizon Patent And Licensing Inc. | 6900 |
41 |
| [24]7.ai, Inc. | 177 |
39 |
| Other owners | 2549 |