- 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: 3703
10-year publication summary
|
412
|
414
|
402
|
334
|
324
|
268
|
219
|
191
|
159
|
33
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 74848 |
292 |
| Sony Corporation | 30461 |
204 |
| Samsung Electronics Co., Ltd. | 153093 |
129 |
| Roku, Inc. | 1539 |
107 |
| Saturn Licensing LLC | 1446 |
92 |
| Comcast Cable Communications, LLC | 5035 |
87 |
| Adeia Guides Inc. | 3699 |
74 |
| Google LLC | 43671 |
70 |
| The Nielsen Company (US), LLC | 2668 |
68 |
| ARRIS Enterprises LLC | 3436 |
66 |
| Sony Group Corporation | 15109 |
62 |
| Qualcomm Incorporated | 89928 |
60 |
| Turner Broadcasting System, Inc. | 285 |
58 |
| AT&T Intellectual Property I, L.P. | 9832 |
56 |
| Amazon Technologies, Inc. | 27656 |
54 |
| DISH Technologies L.L.C. | 1603 |
45 |
| Nokia Technologies Oy | 20164 |
43 |
| Adeia Media Holdings LLC | 618 |
43 |
| Dolby Laboratories Licensing Corporation | 4261 |
39 |
| Microsoft Technology Licensing, LLC | 54210 |
38 |
| Other owners | 2016 |