- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 61/4552 - Lookup mechanisms between a plurality of directoriesSynchronisation of directories, e.g. metadirectories
Patent holdings for IPC class H04L 61/4552
Total number of patents in this class: 127
10-year publication summary
|
0
|
2
|
3
|
16
|
25
|
27
|
20
|
20
|
15
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Xmatrix LLC | 66 |
13 |
| Oracle International Corporation | 13588 |
8 |
| Earthsystems Technologies Operating LLC | 23 |
8 |
| VMware LLC | 6977 |
5 |
| Prodea Automation LLC | 14 |
5 |
| Level 3 Communications, LLC | 1242 |
4 |
| VeriSign, Inc. | 543 |
4 |
| Huawei Technologies Co., Ltd. | 123677 |
3 |
| Verizon Patent And Licensing Inc. | 7572 |
3 |
| Aurea Software, Inc. | 59 |
3 |
| Comcast Cable Communications, LLC | 5193 |
3 |
| DigiCert, Inc. | 271 |
3 |
| Samsung Electronics Co., Ltd. | 158156 |
2 |
| Apple Inc. | 58936 |
2 |
| AT&T Intellectual Property I, L.P. | 10006 |
2 |
| Amazon Technologies, Inc. | 28142 |
2 |
| Citrix Systems, Inc. | 3502 |
2 |
| Nokia Technologies Oy | 21366 |
2 |
| 6Sense Insights, Inc. | 83 |
2 |
| ADE, Inc. | 680 |
2 |
| Other owners | 49 |