- 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: 2392
10-year publication summary
|
206
|
193
|
147
|
114
|
82
|
95
|
91
|
100
|
46
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 31530 |
266 |
| Panasonic Corporation | 20313 |
182 |
| NEC Corporation | 34467 |
74 |
| Sharp Kabushiki Kaisha | 18855 |
73 |
| Pioneer Corporation | 4620 |
68 |
| Nikon Corporation | 7119 |
66 |
| Matsushita Electric Industrial Co., Ltd. | 2760 |
54 |
| FUJIFILM Corporation | 28829 |
50 |
| DISH Technologies L.L.C. | 1665 |
44 |
| Canon Inc. | 38240 |
39 |
| Panasonic Intellectual Property Management Co., Ltd. | 29800 |
36 |
| Samsung Electronics Co., Ltd. | 139302 |
35 |
| Maxell, Ltd. | 2681 |
35 |
| Mitsubishi Electric Corporation | 44904 |
34 |
| Canon Kabushiki Kaisha | 6954 |
34 |
| Amazon Technologies, Inc. | 25944 |
30 |
| Olympus Corporation | 13270 |
27 |
| JVC Kenwood Corporation | 2921 |
26 |
| LG Electronics Inc. | 71074 |
25 |
| Maxell Holdings, Ltd. | 1359 |
24 |
| Other owners | 1170 |