- 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: 165
10-year publication summary
|
21
|
18
|
16
|
15
|
16
|
14
|
17
|
7
|
16
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Time Warner Cable Enterprises LLC | 899 |
8 |
| Charter Communications Operating, LLC | 1269 |
6 |
| Adeia Media Holdings LLC | 616 |
6 |
| Home Box Office, Inc. | 932 |
5 |
| Huawei Technologies Co., Ltd. | 111237 |
5 |
| Microsoft Technology Licensing, LLC | 53545 |
5 |
| Comcast Cable Communications, LLC | 4638 |
4 |
| DRNC Holdings, Inc. | 491 |
4 |
| Enswers Co., Ltd. | 47 |
4 |
| Hughes Network Systems, LLC | 1276 |
4 |
| Tencent Technology (Shenzhen) Company Limited | 14578 |
4 |
| Samsung Electronics Co., Ltd. | 144426 |
3 |
| AT&T Intellectual Property I, L.P. | 9481 |
3 |
| Viacom International Inc. | 1528 |
3 |
| Amazon Technologies, Inc. | 26519 |
3 |
| AT&T Mobility II LLC | 1852 |
3 |
| Saturn Licensing LLC | 1447 |
3 |
| UMBRA Technologies Ltd. | 45 |
3 |
| Qualcomm Incorporated | 84634 |
2 |
| British Telecommunications Public Limited Company | 2611 |
2 |
| Other owners | 85 |