- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 21/4545 - Input to filtering algorithms, e.g. filtering a region of the image
Patent holdings for IPC class H04N 21/4545
Total number of patents in this class: 254
10-year publication summary
27
|
31
|
26
|
20
|
38
|
26
|
23
|
27
|
20
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rovi Guides, Inc. | 3236 |
23 |
AT&T Intellectual Property I, L.P. | 9886 |
11 |
Samsung Electronics Co., Ltd. | 131630 |
8 |
Sony Corporation | 32931 |
8 |
International Business Machines Corporation | 60644 |
8 |
Turner Broadcasting System, Inc. | 276 |
8 |
Comcast Cable Communications, LLC | 4075 |
7 |
DISH Technologies L.L.C. | 1666 |
7 |
Sony Interactive Entertainment Inc. | 5162 |
6 |
Streamsure Solutions Limited | 8 |
6 |
Intel Corporation | 45621 |
5 |
Google LLC | 38759 |
5 |
Qualcomm Incorporated | 76576 |
4 |
Facebook, Inc. | 814 |
4 |
AT&T Mobility II LLC | 1982 |
4 |
Bygge Technologies Inc. | 4 |
4 |
Genetec Inc. | 257 |
4 |
Rovi Product Corporation | 236 |
4 |
Robert Bosch GmbH | 40953 |
3 |
Microsoft Technology Licensing, LLC | 51439 |
3 |
Other owners | 122 |