- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 19/91 - Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
Patent holdings for IPC class H04N 19/91
Total number of patents in this class: 3601
10-year publication summary
|
325
|
257
|
304
|
303
|
315
|
246
|
236
|
256
|
292
|
181
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 85833 |
258 |
| Samsung Electronics Co., Ltd. | 146811 |
195 |
| LG Electronics Inc. | 73344 |
173 |
| Sony Corporation | 31025 |
162 |
| Electronics and Telecommunications Research Institute | 9416 |
121 |
| Dolby Video Compression, LLC | 345 |
121 |
| Google LLC | 42333 |
106 |
| Sun Patent Trust | 2000 |
94 |
| Tencent America LLC | 3823 |
94 |
| Huawei Technologies Co., Ltd. | 113064 |
89 |
| Texas Instruments Incorporated | 19443 |
66 |
| Dolby International AB | 1030 |
65 |
| M & K Holdings Inc. | 83 |
58 |
| Microsoft Technology Licensing, LLC | 53786 |
54 |
| KT Corporation | 2001 |
54 |
| Intel Corporation | 47033 |
45 |
| NEC Corporation | 35778 |
41 |
| Panasonic Intellectual Property Corporation of America | 6804 |
40 |
| HFI Innovation Inc. | 761 |
39 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4969 |
37 |
| Other owners | 1689 |