- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 1/23 - Reproducing arrangements
Patent holdings for IPC class H04N 1/23
Total number of patents in this class: 537
10-year publication summary
|
84
|
52
|
57
|
41
|
33
|
41
|
41
|
26
|
18
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 44285 |
104 |
| Brother Industries, Ltd. | 12827 |
66 |
| FUJIFILM Business Innovation Corp. | 8039 |
39 |
| Hewlett-Packard Development Company, L.P. | 25139 |
31 |
| Kyocera Document Solutions Inc. | 6360 |
29 |
| Toshiba TEC Corporation | 3912 |
28 |
| Seiko Epson Corporation | 20446 |
25 |
| Ricoh Company, Ltd. | 13386 |
25 |
| Konica Minolta, Inc. | 9176 |
21 |
| Toshiba Corporation | 12726 |
19 |
| Xerox Corporation | 4379 |
17 |
| Sharp Corporation | 10868 |
10 |
| Quest Diagnostics Investments Incorporated | 390 |
7 |
| Zhuhai Pantum Electronics Co., Ltd. | 260 |
7 |
| Lexmark International, Inc. | 1531 |
6 |
| Canon Kabushiki Kaisha | 7387 |
6 |
| Eastman Kodak Company | 2577 |
5 |
| FUJIFILM Corporation | 30689 |
4 |
| Konica Minolta Business Technologies, Inc. | 1312 |
4 |
| Open Text Corporation | 517 |
4 |
| Other owners | 80 |