- 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: 3446
10-year publication summary
|
326
|
261
|
307
|
305
|
329
|
248
|
240
|
254
|
289
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 81865 |
253 |
| Samsung Electronics Co., Ltd. | 139001 |
193 |
| LG Electronics Inc. | 71039 |
169 |
| Sony Corporation | 31541 |
164 |
| Dolby Video Compression, LLC | 333 |
120 |
| Electronics and Telecommunications Research Institute | 9021 |
111 |
| Google LLC | 40853 |
101 |
| Sun Patent Trust | 2040 |
95 |
| Tencent America LLC | 3487 |
89 |
| Huawei Technologies Co., Ltd. | 106762 |
87 |
| Dolby International AB | 1048 |
67 |
| Texas Instruments Incorporated | 19432 |
63 |
| M & K Holdings Inc. | 83 |
58 |
| KT Corporation | 1936 |
51 |
| Intel Corporation | 46126 |
45 |
| Microsoft Technology Licensing, LLC | 52886 |
45 |
| NEC Corporation | 34413 |
42 |
| HFI Innovation Inc. | 761 |
39 |
| Panasonic Intellectual Property Corporation of America | 7405 |
37 |
| Canon Kabushiki Kaisha | 6938 |
36 |
| Other owners | 1581 |