- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 9/28 - Arrangements for secret or secure communicationsNetwork security protocols using particular encryption algorithm
Patent holdings for IPC class H04L 9/28
Total number of patents in this class: 713
10-year publication summary
|
26
|
18
|
32
|
19
|
16
|
16
|
12
|
12
|
7
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Intel Corporation | 46579 |
40 |
| Malikie Innovations Limited | 6809 |
17 |
| Research In Motion Limited | 1609 |
13 |
| NEC Corporation | 36455 |
12 |
| Nippon Telegraph and Telephone Corporation | 16266 |
12 |
| International Business Machines Corporation | 61906 |
11 |
| BlackBerry Limited | 5139 |
10 |
| Samsung Electronics Co., Ltd. | 151303 |
9 |
| Apple Inc. | 57058 |
9 |
| Huawei Technologies Co., Ltd. | 117973 |
9 |
| Fujitsu Limited | 17373 |
8 |
| Microsoft Technology Licensing, LLC | 54197 |
8 |
| Hewlett-Packard Development Company, L.P. | 25459 |
7 |
| Infineon Technologies AG | 8314 |
7 |
| Amazon Technologies, Inc. | 27474 |
7 |
| Google LLC | 43412 |
7 |
| Sony Corporation | 30608 |
6 |
| Mitsubishi Electric Corporation | 47338 |
6 |
| Cryptography Research, Inc. | 315 |
6 |
| Agency for Science, Technology and Research | 3669 |
6 |
| Other owners | 503 |