- 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: 1865
10-year publication summary
|
229
|
200
|
194
|
170
|
159
|
144
|
100
|
112
|
90
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Comcast Cable Communications, LLC | 5029 |
97 |
| Adeia Guides Inc. | 3696 |
74 |
| AT&T Intellectual Property I, L.P. | 9832 |
51 |
| DISH Technologies L.L.C. | 1603 |
49 |
| Google LLC | 43643 |
43 |
| Amazon Technologies, Inc. | 27637 |
41 |
| Samsung Electronics Co., Ltd. | 152914 |
30 |
| Microsoft Technology Licensing, LLC | 54182 |
30 |
| ARRIS Enterprises LLC | 3438 |
27 |
| Time Warner Cable Enterprises LLC | 870 |
27 |
| Adeia Media Holdings LLC | 616 |
26 |
| Roku, Inc. | 1537 |
25 |
| Netflix, Inc. | 1245 |
24 |
| ZTE Corporation | 43549 |
20 |
| Multimedia Technologies Pte, Ltd | 60 |
20 |
| Verizon Patent And Licensing Inc. | 7441 |
18 |
| Qualcomm Incorporated | 89782 |
17 |
| Sony Corporation | 30481 |
16 |
| Ericsson | 22237 |
16 |
| Cisco Technology, Inc. | 22240 |
16 |
| Other owners | 1198 |