- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 5/91 - Television signal processing therefor
Patent holdings for IPC class H04N 5/91
Total number of patents in this class: 2237
10-year publication summary
|
205
|
192
|
146
|
114
|
82
|
94
|
91
|
98
|
46
|
58
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30829 |
249 |
| Panasonic Corporation | 19985 |
178 |
| NEC Corporation | 36225 |
79 |
| Sharp Kabushiki Kaisha | 18649 |
65 |
| Nikon Corporation | 7308 |
63 |
| Pioneer Corporation | 4188 |
46 |
| FUJIFILM Corporation | 29752 |
45 |
| DISH Technologies L.L.C. | 1606 |
44 |
| Canon Inc. | 40862 |
42 |
| Panasonic Intellectual Property Management Co., Ltd. | 32244 |
37 |
| Maxell, Ltd. | 2864 |
32 |
| Canon Kabushiki Kaisha | 7135 |
32 |
| Mitsubishi Electric Corporation | 46765 |
31 |
| Amazon Technologies, Inc. | 27161 |
31 |
| Samsung Electronics Co., Ltd. | 148649 |
30 |
| JVC Kenwood Corporation | 3055 |
28 |
| Olympus Corporation | 13100 |
26 |
| GoPro, Inc. | 2017 |
25 |
| Apple Inc. | 56070 |
21 |
| Microsoft Technology Licensing, LLC | 54162 |
20 |
| Other owners | 1113 |