- 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: 3682
10-year publication summary
|
412
|
414
|
402
|
334
|
324
|
268
|
218
|
190
|
159
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73967 |
296 |
| Sony Corporation | 30735 |
205 |
| Samsung Electronics Co., Ltd. | 149838 |
129 |
| Roku, Inc. | 1480 |
107 |
| Saturn Licensing LLC | 1442 |
93 |
| Comcast Cable Communications, LLC | 4894 |
85 |
| Adeia Guides Inc. | 3548 |
74 |
| Google LLC | 43237 |
71 |
| The Nielsen Company (US), LLC | 2656 |
68 |
| ARRIS Enterprises LLC | 3441 |
65 |
| Sony Group Corporation | 14674 |
62 |
| Qualcomm Incorporated | 88095 |
60 |
| Turner Broadcasting System, Inc. | 286 |
58 |
| AT&T Intellectual Property I, L.P. | 9697 |
56 |
| Amazon Technologies, Inc. | 27338 |
54 |
| DISH Technologies L.L.C. | 1607 |
45 |
| Nokia Technologies Oy | 19318 |
43 |
| Adeia Media Holdings LLC | 606 |
43 |
| Microsoft Technology Licensing, LLC | 54394 |
38 |
| Dolby Laboratories Licensing Corporation | 4215 |
36 |
| Other owners | 1994 |