- 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: 532
10-year publication summary
|
63
|
33
|
51
|
52
|
35
|
31
|
26
|
12
|
13
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 147334 |
42 |
| Koninklijke Philips N.V. | 24827 |
33 |
| Dolby Laboratories Licensing Corporation | 4140 |
26 |
| Canon Inc. | 40280 |
25 |
| Sony Corporation | 30957 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 31756 |
16 |
| GoPro, Inc. | 1986 |
14 |
| Apple Inc. | 55345 |
11 |
| Texas Instruments Incorporated | 19454 |
10 |
| Nikon Corporation | 7206 |
10 |
| Qualcomm Incorporated | 86153 |
9 |
| Sharp Kabushiki Kaisha | 18724 |
9 |
| Panasonic Corporation | 20059 |
7 |
| Huawei Technologies Co., Ltd. | 113491 |
7 |
| Olympus Corporation | 13153 |
6 |
| InterDigital Holdings, Inc. | 839 |
6 |
| ViXS Systems, Inc. | 108 |
6 |
| LG Electronics Inc. | 73476 |
5 |
| Intel Corporation | 47093 |
5 |
| Fujitsu Limited | 18393 |
5 |
| Other owners | 263 |