- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 5/85 - Television signal recording using optical recording on discs or drums
Patent holdings for IPC class H04N 5/85
Total number of patents in this class: 1250
10-year publication summary
|
63
|
66
|
103
|
86
|
75
|
55
|
29
|
25
|
21
|
2
|
| 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 43704 |
158 |
| Matsushita Electric Industrial Co., Ltd. | 10911 |
91 |
| LG Electronics Inc. | 61477 |
84 |
| Koninklijke Philips Electronics N.V. | 23064 |
80 |
| Panasonic Corporation | 24866 |
51 |
| Mitsubishi Electric Corporation | 36454 |
47 |
| Thomson Licensing S.A. | 973 |
47 |
| Panasonic Intellectual Property Corporation of America | 4332 |
45 |
| Samsung Electronics Co., Ltd. | 107772 |
43 |
| Pioneer Corporation | 5087 |
36 |
| Rovi Guides, Inc. | 2056 |
30 |
| Panasonic Intellectual Property Management Co., Ltd. | 20933 |
20 |
| TiVo Solutions Inc. | 319 |
19 |
| Maxell, Ltd. | 1698 |
15 |
| Canon Inc. | 38908 |
11 |
| Thomson Licensing | 4560 |
11 |
| DISH Technologies L.L.C. | 1389 |
11 |
| Sharp Kabushiki Kaisha | 18338 |
11 |
| International Business Machines Corporation | 72126 |
10 |
| Microsoft Technology Licensing, LLC | 48171 |
10 |
| Other owners | 420 |