- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4728 - End-user interface for requesting content, additional data or services; End-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: 897
10-year publication summary
|
74
|
71
|
85
|
141
|
155
|
100
|
72
|
73
|
54
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nokia Technologies Oy | 15057 |
63 |
| Samsung Electronics Co., Ltd. | 131630 |
58 |
| Sony Corporation | 32931 |
49 |
| Canon Inc. | 36841 |
31 |
| LG Electronics Inc. | 69257 |
29 |
| Intel Corporation | 45621 |
21 |
| Google LLC | 38759 |
21 |
| Canon Kabushiki Kaisha | 6884 |
20 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
18 |
| Koninklijke KPN N.V. | 742 |
17 |
| Sony Interactive Entertainment Inc. | 5162 |
16 |
| Vid Scale, Inc. | 442 |
16 |
| Broadcom Corporation | 545 |
13 |
| Canon Europe Limited | 229 |
12 |
| Apple Inc. | 50209 |
11 |
| Qualcomm Incorporated | 76576 |
11 |
| Ricoh Company, Ltd. | 13266 |
11 |
| Huawei Technologies Co., Ltd. | 100781 |
11 |
| Microsoft Technology Licensing, LLC | 51439 |
11 |
| Koninklijke Philips N.V. | 22975 |
8 |
| Other owners | 450 |