- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4367 - Establishing a secure communication between the client and a peripheral device or smart card
Patent holdings for IPC class H04N 21/4367
Total number of patents in this class: 400
10-year publication summary
|
46
|
42
|
33
|
26
|
24
|
17
|
21
|
7
|
6
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Enseo, LLC | 252 |
29 |
| Nagravision S.A. | 530 |
21 |
| Samsung Electronics Co., Ltd. | 157557 |
15 |
| Maxell, Ltd. | 3015 |
15 |
| LG Electronics Inc. | 75654 |
14 |
| Sony Corporation | 30208 |
14 |
| Maxell Holdings, Ltd. | 1259 |
14 |
| ARRIS Enterprises LLC | 3413 |
11 |
| Universal Electronics Inc. | 853 |
11 |
| Apple Inc. | 58705 |
10 |
| AT&T Intellectual Property I, L.P. | 9993 |
9 |
| Google LLC | 44482 |
8 |
| Comcast Cable Communications, LLC | 5169 |
7 |
| Crestron Electronics Inc. | 715 |
7 |
| Adeia Media Solutions Inc. | 262 |
7 |
| Toshiba Corporation | 12548 |
6 |
| Intel Corporation | 47102 |
6 |
| Google Technology Holdings LLC | 2095 |
6 |
| Digimarc Corporation | 714 |
6 |
| Sling Media L.L.C. | 171 |
6 |
| Other owners | 178 |