- 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: 524
10-year publication summary
|
33
|
51
|
52
|
35
|
30
|
26
|
12
|
13
|
13
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 152534 |
41 |
| Koninklijke Philips N.V. | 25448 |
35 |
| Dolby Laboratories Licensing Corporation | 4254 |
26 |
| Canon Inc. | 41984 |
25 |
| Sony Corporation | 30518 |
17 |
| Panasonic Intellectual Property Management Co., Ltd. | 33202 |
16 |
| GoPro, Inc. | 2076 |
14 |
| Apple Inc. | 57505 |
10 |
| Qualcomm Incorporated | 89428 |
9 |
| Texas Instruments Incorporated | 19587 |
9 |
| Sharp Kabushiki Kaisha | 18626 |
9 |
| Nikon Corporation | 7258 |
8 |
| Panasonic Corporation | 19843 |
7 |
| Huawei Technologies Co., Ltd. | 119081 |
7 |
| Olympus Corporation | 13041 |
6 |
| InterDigital Holdings, Inc. | 886 |
6 |
| ViXS Systems, Inc. | 107 |
6 |
| LG Electronics Inc. | 74705 |
5 |
| Intel Corporation | 46625 |
5 |
| Boe Technology Group Co., Ltd. | 42685 |
5 |
| Other owners | 258 |