- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 5/781 - Television signal recording using magnetic recording on disks or drums
Patent holdings for IPC class H04N 5/781
Total number of patents in this class: 714
10-year publication summary
|
38
|
53
|
51
|
52
|
38
|
22
|
21
|
10
|
7
|
1
|
| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 43704 |
57 |
| Koninklijke Philips Electronics N.V. | 23064 |
49 |
| LG Electronics Inc. | 61477 |
30 |
| Matsushita Electric Industrial Co., Ltd. | 10911 |
29 |
| Samsung Electronics Co., Ltd. | 107772 |
24 |
| Thomson Licensing S.A. | 973 |
24 |
| Rovi Guides, Inc. | 2056 |
22 |
| TiVo Solutions Inc. | 319 |
21 |
| Scientific-Atlanta, Inc. | 353 |
19 |
| Canon Inc. | 38908 |
14 |
| Apple Inc. | 38919 |
11 |
| Maxell, Ltd. | 1698 |
11 |
| DISH Technologies L.L.C. | 1389 |
11 |
| Microsoft Technology Licensing, LLC | 48171 |
10 |
| Saturn Licensing LLC | 1558 |
10 |
| The DIRECTV Group, Inc. | 1089 |
8 |
| Cisco Technology, Inc. | 19283 |
7 |
| Thomson Licensing | 4560 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 20933 |
7 |
| Sony Electronics Inc. | 1380 |
7 |
| Other owners | 336 |