- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4728 - End-user interface for requesting content, additional data or servicesEnd-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification or for manipulating displayed content for selecting a ROI [Region Of Interest], e.g. for requesting a higher resolution version of a selected region
Patent holdings for IPC class H04N 21/4728
Total number of patents in this class: 925
10-year publication summary
|
71
|
85
|
141
|
155
|
100
|
71
|
73
|
58
|
31
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nokia Technologies Oy | 17651 |
65 |
| Samsung Electronics Co., Ltd. | 145416 |
63 |
| Sony Corporation | 31093 |
48 |
| Canon Inc. | 39713 |
31 |
| LG Electronics Inc. | 72807 |
29 |
| Google LLC | 42038 |
23 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4934 |
22 |
| Intel Corporation | 46949 |
21 |
| Canon Kabushiki Kaisha | 7047 |
21 |
| Koninklijke KPN N.V. | 774 |
17 |
| Sony Interactive Entertainment Inc. | 5837 |
15 |
| Broadcom Corporation | 519 |
13 |
| Canon Europe Limited | 280 |
13 |
| Apple Inc. | 54658 |
11 |
| Qualcomm Incorporated | 84971 |
11 |
| Ricoh Company, Ltd. | 13247 |
11 |
| Microsoft Technology Licensing, LLC | 53649 |
11 |
| Sony Group Corporation | 13703 |
11 |
| Huawei Technologies Co., Ltd. | 111975 |
10 |
| Dolby Laboratories Licensing Corporation | 4116 |
8 |
| Other owners | 471 |