- 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: 543
10-year publication summary
|
35
|
64
|
33
|
51
|
52
|
35
|
31
|
26
|
12
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
41 |
| Canon Inc. | 36841 |
26 |
| Koninklijke Philips N.V. | 22975 |
26 |
| Dolby Laboratories Licensing Corporation | 3883 |
26 |
| Sony Corporation | 32931 |
19 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
16 |
| GoPro, Inc. | 1915 |
13 |
| Apple Inc. | 50209 |
12 |
| Nikon Corporation | 7162 |
12 |
| Qualcomm Incorporated | 76576 |
9 |
| Texas Instruments Incorporated | 19376 |
9 |
| Olympus Corporation | 13667 |
9 |
| Sharp Kabushiki Kaisha | 18957 |
9 |
| Panasonic Corporation | 20786 |
7 |
| LG Electronics Inc. | 69257 |
6 |
| Huawei Technologies Co., Ltd. | 100781 |
6 |
| InterDigital Holdings, Inc. | 520 |
6 |
| ViXS Systems, Inc. | 112 |
6 |
| Intel Corporation | 45621 |
5 |
| Fujitsu Limited | 19265 |
5 |
| Other owners | 275 |