- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/422 - Input-only peripherals, e.g. global positioning system [GPS]
Patent holdings for IPC class H04N 21/422
Total number of patents in this class: 6044
10-year publication summary
|
676
|
661
|
588
|
551
|
462
|
472
|
447
|
327
|
273
|
158
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 157557 |
704 |
| LG Electronics Inc. | 75654 |
417 |
| Universal Electronics Inc. | 853 |
277 |
| Google LLC | 44482 |
187 |
| Adeia Guides Inc. | 3915 |
178 |
| Apple Inc. | 58705 |
163 |
| DISH Technologies L.L.C. | 1602 |
160 |
| Sony Corporation | 30208 |
120 |
| The Nielsen Company (US), LLC | 2691 |
106 |
| Microsoft Technology Licensing, LLC | 54439 |
99 |
| AT&T Intellectual Property I, L.P. | 9993 |
98 |
| Roku, Inc. | 1601 |
97 |
| Enseo, LLC | 252 |
95 |
| Hisense Visual Technology Co., Ltd. | 997 |
88 |
| Maxell, Ltd. | 3015 |
76 |
| Saturn Licensing LLC | 1441 |
60 |
| ARRIS Enterprises LLC | 3413 |
56 |
| Sonos, Inc. | 2853 |
54 |
| Comcast Cable Communications, LLC | 5169 |
52 |
| Huawei Technologies Co., Ltd. | 123282 |
50 |
| Other owners | 2907 |