- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/231 - Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers or prioritizing data for deletion
Patent holdings for IPC class H04N 21/231
Total number of patents in this class: 1801
10-year publication summary
|
196
|
239
|
203
|
200
|
172
|
168
|
144
|
101
|
112
|
46
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Comcast Cable Communications, LLC | 4627 |
88 |
| Adeia Guides Inc. | 3174 |
69 |
| AT&T Intellectual Property I, L.P. | 9470 |
51 |
| DISH Technologies L.L.C. | 1606 |
49 |
| Google LLC | 41828 |
48 |
| Amazon Technologies, Inc. | 26466 |
41 |
| Microsoft Technology Licensing, LLC | 53512 |
30 |
| Samsung Electronics Co., Ltd. | 144143 |
29 |
| Time Warner Cable Enterprises LLC | 899 |
27 |
| ARRIS Enterprises LLC | 3429 |
26 |
| Adeia Media Holdings LLC | 599 |
25 |
| Roku, Inc. | 1373 |
22 |
| ZTE Corporation | 42015 |
20 |
| Multimedia Technologies Pte, Ltd | 60 |
20 |
| Verizon Patent And Licensing Inc. | 7067 |
18 |
| Qualcomm Incorporated | 84501 |
17 |
| Sony Corporation | 31148 |
16 |
| Cisco Technology, Inc. | 19623 |
16 |
| Netflix, Inc. | 1092 |
16 |
| Tencent Technology (Shenzhen) Company Limited | 14547 |
16 |
| Other owners | 1157 |