- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 69/321 - Interlayer communication protocols or service data unit [SDU] definitionsInterfaces between layers
Patent holdings for IPC class H04L 69/321
Total number of patents in this class: 236
10-year publication summary
|
2
|
2
|
5
|
26
|
27
|
36
|
33
|
53
|
35
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Intel Corporation | 46594 |
22 |
| VMware LLC | 6829 |
21 |
| Samsung Electronics Co., Ltd. | 152016 |
15 |
| LG Electronics Inc. | 74502 |
14 |
| Huawei Technologies Co., Ltd. | 118634 |
9 |
| Qualcomm Incorporated | 89126 |
8 |
| Convida Wireless, LLC | 528 |
7 |
| Google LLC | 43500 |
5 |
| Interdigital Patent Holdings, Inc. | 6252 |
4 |
| Cisco Technology, Inc. | 22245 |
4 |
| Microsoft Technology Licensing, LLC | 54189 |
4 |
| Citrix Systems, Inc. | 3556 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 28552 |
4 |
| Ericsson | 22188 |
3 |
| Panasonic Intellectual Property Corporation of America | 7034 |
3 |
| Mediatek Inc. | 5328 |
3 |
| Nokia Technologies Oy | 19868 |
3 |
| Comcast Cable Communications, LLC | 4987 |
3 |
| Vivo Mobile Communication Co., Ltd. | 13098 |
3 |
| Guardknox Cyber Technologies Ltd. | 11 |
3 |
| Other owners | 94 |