- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 9/68 - Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
Patent holdings for IPC class H04N 9/68
Total number of patents in this class: 531
10-year publication summary
|
64
|
33
|
51
|
52
|
35
|
31
|
26
|
12
|
13
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 141295 |
42 |
| Koninklijke Philips N.V. | 24175 |
30 |
| Dolby Laboratories Licensing Corporation | 4090 |
26 |
| Canon Inc. | 38762 |
25 |
| Sony Corporation | 31334 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 30270 |
16 |
| GoPro, Inc. | 1919 |
13 |
| Apple Inc. | 53593 |
11 |
| Texas Instruments Incorporated | 19467 |
10 |
| Nikon Corporation | 7119 |
10 |
| Qualcomm Incorporated | 83171 |
9 |
| Sharp Kabushiki Kaisha | 18862 |
9 |
| Panasonic Corporation | 20247 |
7 |
| Huawei Technologies Co., Ltd. | 108467 |
7 |
| Olympus Corporation | 13241 |
7 |
| InterDigital Holdings, Inc. | 800 |
6 |
| ViXS Systems, Inc. | 108 |
6 |
| LG Electronics Inc. | 71685 |
5 |
| Intel Corporation | 46388 |
5 |
| Fujitsu Limited | 18312 |
5 |
| Other owners | 265 |