- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 69/321 - Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
Patent holdings for IPC class H04L 69/321
Total number of patents in this class: 142
10-year publication summary
2
|
4
|
2
|
2
|
5
|
27
|
25
|
29
|
32
|
12
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Intel Corporation | 45621 |
14 |
VMware LLC | 6078 |
12 |
Convida Wireless, LLC | 616 |
8 |
Nicira, Inc. | 1192 |
8 |
Samsung Electronics Co., Ltd. | 131630 |
7 |
Qualcomm Incorporated | 76576 |
5 |
LG Electronics Inc. | 69257 |
5 |
Huawei Technologies Co., Ltd. | 100781 |
5 |
Citrix Systems, Inc. | 3905 |
5 |
CACI, Inc. - Federal | 86 |
4 |
Microsoft Technology Licensing, LLC | 51439 |
3 |
Panasonic Intellectual Property Corporation of America | 7230 |
2 |
The Trustees of Columbia University in the City of New York | 3440 |
2 |
Nokia Technologies Oy | 15057 |
2 |
Akamai Technologies, Inc. | 728 |
2 |
Cox Communications, Inc. | 471 |
2 |
Grass Valley Canada | 242 |
2 |
Sparkle CS Ltd | 10 |
2 |
UMBRA Technologies Ltd. | 43 |
2 |
Epiroc Rock Drills Aktiebolag | 405 |
2 |
Other owners | 48 |