- 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: 2312
10-year publication summary
|
206
|
193
|
147
|
114
|
82
|
95
|
91
|
100
|
46
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 31138 |
257 |
| Panasonic Corporation | 20166 |
179 |
| NEC Corporation | 35424 |
73 |
| Sharp Kabushiki Kaisha | 18787 |
72 |
| Nikon Corporation | 7164 |
64 |
| Pioneer Corporation | 4396 |
54 |
| FUJIFILM Corporation | 29251 |
44 |
| DISH Technologies L.L.C. | 1606 |
44 |
| Canon Inc. | 39538 |
42 |
| Matsushita Electric Industrial Co., Ltd. | 1787 |
37 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
37 |
| Canon Kabushiki Kaisha | 7046 |
35 |
| Mitsubishi Electric Corporation | 45860 |
34 |
| Maxell, Ltd. | 2775 |
34 |
| Samsung Electronics Co., Ltd. | 144426 |
32 |
| Amazon Technologies, Inc. | 26519 |
30 |
| Olympus Corporation | 13197 |
27 |
| JVC Kenwood Corporation | 2993 |
26 |
| GoPro, Inc. | 1955 |
23 |
| Maxell Holdings, Ltd. | 1326 |
22 |
| Other owners | 1146 |