- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 9/18 - Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems
Patent holdings for IPC class H04L 9/18
Total number of patents in this class: 228
10-year publication summary
|
14
|
15
|
17
|
5
|
9
|
16
|
5
|
3
|
7
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BlackBerry Limited | 5958 |
7 |
| Intel Corporation | 45621 |
6 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
6 |
| Qualcomm Incorporated | 76576 |
5 |
| LG Electronics Inc. | 69257 |
4 |
| Panasonic Corporation | 20786 |
4 |
| Huawei Technologies Co., Ltd. | 100781 |
4 |
| Sony Corporation | 32931 |
3 |
| Cisco Technology, Inc. | 18858 |
3 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| Motorola Solutions, Inc. | 4355 |
3 |
| Afero, Inc. | 142 |
3 |
| National Institute of Information and Communications Technology | 594 |
3 |
| Alcatel Lucent | 4720 |
3 |
| France Telecom | 1618 |
3 |
| Synaptic Laboratories Limited | 12 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| NEC Corporation | 32703 |
2 |
| Interdigital Technology Corporation | 1140 |
2 |
| Robert Bosch GmbH | 40953 |
2 |
| Other owners | 157 |