- 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: 3546
10-year publication summary
|
484
|
425
|
430
|
408
|
335
|
325
|
272
|
215
|
184
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 70898 |
300 |
| Sony Corporation | 31565 |
206 |
| Samsung Electronics Co., Ltd. | 138518 |
129 |
| Roku, Inc. | 1265 |
103 |
| Saturn Licensing LLC | 1476 |
97 |
| Comcast Cable Communications, LLC | 4430 |
72 |
| The Nielsen Company (US), LLC | 2640 |
69 |
| Google LLC | 40754 |
67 |
| Adeia Guides Inc. | 2817 |
67 |
| ARRIS Enterprises LLC | 3441 |
63 |
| Qualcomm Incorporated | 81413 |
59 |
| Turner Broadcasting System, Inc. | 280 |
58 |
| AT&T Intellectual Property I, L.P. | 9330 |
57 |
| Sony Group Corporation | 12575 |
55 |
| Amazon Technologies, Inc. | 25836 |
52 |
| DISH Technologies L.L.C. | 1664 |
45 |
| Microsoft Technology Licensing, LLC | 52891 |
37 |
| Sharp Kabushiki Kaisha | 18871 |
36 |
| Adeia Media Holdings LLC | 526 |
35 |
| Nokia Technologies Oy | 16490 |
34 |
| Other owners | 1905 |