- 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: 169
10-year publication summary
|
21
|
16
|
15
|
14
|
15
|
14
|
17
|
7
|
16
|
6
|
| 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 | 891 |
8 |
| Adeia Media Holdings LLC | 601 |
7 |
| Charter Communications Operating, LLC | 1329 |
6 |
| Home Box Office, Inc. | 931 |
5 |
| Huawei Technologies Co., Ltd. | 113853 |
5 |
| Microsoft Technology Licensing, LLC | 53910 |
5 |
| Tencent Technology (Shenzhen) Company Limited | 14928 |
5 |
| Comcast Cable Communications, LLC | 4763 |
4 |
| DRNC Holdings, Inc. | 488 |
4 |
| Enswers Co., Ltd. | 47 |
4 |
| Hughes Network Systems, LLC | 1299 |
4 |
| Samsung Electronics Co., Ltd. | 147622 |
3 |
| AT&T Intellectual Property I, L.P. | 9588 |
3 |
| Viacom International Inc. | 1532 |
3 |
| Amazon Technologies, Inc. | 26938 |
3 |
| AT&T Mobility II LLC | 1863 |
3 |
| Saturn Licensing LLC | 1439 |
3 |
| UMBRA Technologies Ltd. | 47 |
3 |
| Qualcomm Incorporated | 86553 |
2 |
| British Telecommunications Public Limited Company | 2638 |
2 |
| Other owners | 87 |