- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/2183 - Cache memory
Patent holdings for IPC class H04N 21/2183
Total number of patents in this class: 171
10-year publication summary
|
16
|
15
|
14
|
15
|
14
|
17
|
7
|
16
|
8
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Time Warner Cable Enterprises LLC | 879 |
8 |
| Adeia Media Holdings LLC | 606 |
7 |
| Charter Communications Operating, LLC | 1435 |
6 |
| Home Box Office, Inc. | 926 |
5 |
| Huawei Technologies Co., Ltd. | 116616 |
5 |
| Microsoft Technology Licensing, LLC | 54394 |
5 |
| Tencent Technology (Shenzhen) Company Limited | 15281 |
5 |
| Comcast Cable Communications, LLC | 4894 |
4 |
| DRNC Holdings, Inc. | 486 |
4 |
| Enswers Co., Ltd. | 47 |
4 |
| Hughes Network Systems, LLC | 1329 |
4 |
| UMBRA Technologies Ltd. | 53 |
4 |
| Samsung Electronics Co., Ltd. | 149838 |
3 |
| AT&T Intellectual Property I, L.P. | 9697 |
3 |
| Viacom International Inc. | 1518 |
3 |
| Amazon Technologies, Inc. | 27338 |
3 |
| AT&T Mobility II LLC | 1873 |
3 |
| Saturn Licensing LLC | 1442 |
3 |
| Qualcomm Incorporated | 88095 |
2 |
| British Telecommunications Public Limited Company | 2650 |
2 |
| Other owners | 88 |