- 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: 262
10-year publication summary
|
2
|
3
|
6
|
27
|
28
|
37
|
34
|
54
|
36
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Intel Corporation | 46360 |
24 |
| Samsung Electronics Co., Ltd. | 159978 |
21 |
| VMware LLC | 6965 |
21 |
| LG Electronics Inc. | 76283 |
18 |
| Huawei Technologies Co., Ltd. | 125807 |
11 |
| Qualcomm Incorporated | 94096 |
8 |
| Interdigital Patent Holdings, Inc. | 7357 |
5 |
| Google LLC | 44992 |
5 |
| Cisco Technology, Inc. | 22697 |
4 |
| Microsoft Technology Licensing, LLC | 54719 |
4 |
| Citrix Systems, Inc. | 3489 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 29015 |
4 |
| Ipla Holdings Inc. | 158 |
4 |
| Ericsson | 23154 |
3 |
| Panasonic Intellectual Property Corporation of America | 7327 |
3 |
| Mediatek Inc. | 5579 |
3 |
| Nokia Solutions And Networks Oy | 7386 |
3 |
| Nokia Technologies Oy | 22085 |
3 |
| Comcast Cable Communications, LLC | 5280 |
3 |
| Convida Wireless, LLC | 468 |
3 |
| Other owners | 108 |