- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 61/4594 - Address books, i.e. directories containing contact information about correspondents
Patent holdings for IPC class H04L 61/4594
Total number of patents in this class: 49
10-year publication summary
|
1
|
0
|
1
|
5
|
11
|
4
|
7
|
7
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 43500 |
5 |
| Amazon Technologies, Inc. | 27542 |
4 |
| eIngot LLC | 46 |
3 |
| Sorenson IP Holdings, LLC | 309 |
3 |
| Apple Inc. | 57314 |
2 |
| BlackBerry Limited | 5113 |
2 |
| International Business Machines Corporation | 62002 |
2 |
| Huawei Technologies Co., Ltd. | 118634 |
2 |
| VeriSign, Inc. | 541 |
2 |
| Nearfaces UG | 3 |
2 |
| Samsung Electronics Co., Ltd. | 152016 |
1 |
| Research In Motion Limited | 1564 |
1 |
| LG Electronics Inc. | 74502 |
1 |
| Cisco Technology, Inc. | 22245 |
1 |
| Google Technology Holdings LLC | 2161 |
1 |
| Motorola Solutions, Inc. | 4516 |
1 |
| BCE Inc. | 363 |
1 |
| Cable Television Laboratories, Inc. | 1059 |
1 |
| Integrity Marketing Group, LLC | 9 |
1 |
| Nidec Corporation | 2742 |
1 |
| Other owners | 12 |