- 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: 3650
10-year publication summary
|
464
|
412
|
414
|
402
|
334
|
324
|
268
|
217
|
190
|
124
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73578 |
301 |
| Sony Corporation | 30929 |
205 |
| Samsung Electronics Co., Ltd. | 147622 |
129 |
| Roku, Inc. | 1428 |
105 |
| Saturn Licensing LLC | 1439 |
93 |
| Comcast Cable Communications, LLC | 4763 |
81 |
| Adeia Guides Inc. | 3365 |
76 |
| Google LLC | 42564 |
70 |
| The Nielsen Company (US), LLC | 2657 |
66 |
| ARRIS Enterprises LLC | 3475 |
64 |
| Sony Group Corporation | 14138 |
61 |
| Qualcomm Incorporated | 86553 |
59 |
| Turner Broadcasting System, Inc. | 285 |
58 |
| AT&T Intellectual Property I, L.P. | 9588 |
56 |
| Amazon Technologies, Inc. | 26938 |
53 |
| DISH Technologies L.L.C. | 1608 |
45 |
| Adeia Media Holdings LLC | 601 |
43 |
| Microsoft Technology Licensing, LLC | 53910 |
38 |
| Nokia Technologies Oy | 18266 |
37 |
| Sharp Kabushiki Kaisha | 18716 |
36 |
| Other owners | 1974 |