- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 19/18 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
Patent holdings for IPC class H04N 19/18
Total number of patents in this class: 2452
10-year publication summary
|
148
|
119
|
171
|
193
|
231
|
271
|
274
|
250
|
287
|
123
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72559 |
482 |
| Qualcomm Incorporated | 84634 |
185 |
| Samsung Electronics Co., Ltd. | 144426 |
118 |
| Tencent America LLC | 3739 |
97 |
| Google LLC | 41903 |
77 |
| Canon Inc. | 39538 |
75 |
| Sony Corporation | 31138 |
66 |
| Electronics and Telecommunications Research Institute | 9358 |
66 |
| Huawei Technologies Co., Ltd. | 111237 |
44 |
| Panasonic Intellectual Property Corporation of America | 7622 |
44 |
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 20727 |
39 |
| Bytedance Inc. | 3747 |
37 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4905 |
33 |
| Beijing Bytedance Network Technology Co., Ltd. | 4070 |
33 |
| Dolby Video Compression, LLC | 340 |
33 |
| Sony Group Corporation | 13560 |
31 |
| KT Corporation | 1975 |
29 |
| M & K Holdings Inc. | 83 |
29 |
| Beijing Dajia Internet Information Technology Co., Ltd. | 1449 |
26 |
| HFI Innovation Inc. | 761 |
25 |
| Other owners | 883 |