- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/235 - Processing of additional data, e.g. scrambling of additional data or processing content descriptors
Patent holdings for IPC class H04N 21/235
Total number of patents in this class: 3494
10-year publication summary
|
469
|
484
|
426
|
429
|
407
|
335
|
324
|
270
|
211
|
65
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
304 |
| Sony Corporation | 32931 |
213 |
| Samsung Electronics Co., Ltd. | 131630 |
133 |
| Roku, Inc. | 1151 |
111 |
| Saturn Licensing LLC | 1502 |
93 |
| Comcast Cable Communications, LLC | 4075 |
67 |
| The Nielsen Company (US), LLC | 2549 |
67 |
| Google LLC | 38759 |
65 |
| AT&T Intellectual Property I, L.P. | 9886 |
62 |
| Rovi Guides, Inc. | 3236 |
62 |
| Qualcomm Incorporated | 76576 |
60 |
| ARRIS Enterprises LLC | 3432 |
60 |
| Turner Broadcasting System, Inc. | 276 |
53 |
| Amazon Technologies, Inc. | 24422 |
47 |
| DISH Technologies L.L.C. | 1666 |
46 |
| Sony Group Corporation | 10730 |
46 |
| Sharp Kabushiki Kaisha | 18957 |
36 |
| Microsoft Technology Licensing, LLC | 51439 |
34 |
| Nokia Technologies Oy | 15057 |
33 |
| META Platforms, Inc. | 7514 |
30 |
| Other owners | 1872 |