- All sections
- B - Performing operations; transporting
- B41J - Typewriters; selective printing mechanisms, i.e. mechanisms printing otherwise than from a forme; correction of typographical errors
- B41J 2/20 - Ink jet characterised by ink handling for preventing or detecting contamination of compounds
Patent holdings for IPC class B41J 2/20
Total number of patents in this class: 70
10-year publication summary
|
7
|
10
|
4
|
11
|
8
|
10
|
4
|
3
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 28538 |
14 |
| Brother Industries, Ltd. | 13000 |
13 |
| Seiko Epson Corporation | 18724 |
9 |
| Xerox Corporation | 7503 |
4 |
| Dover Europe Sàrl | 242 |
4 |
| Canon Inc. | 36841 |
3 |
| Ricoh Company, Ltd. | 13266 |
3 |
| Silverbrook Research Pty Ltd | 172 |
3 |
| Kyocera Document Solutions Inc. | 5295 |
2 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
2 |
| Eastman Kodak Company | 3444 |
1 |
| Kyocera Corporation | 12735 |
1 |
| Memjet Technology Ltd. | 757 |
1 |
| Domino UK Limited | 31 |
1 |
| Electronics for Imaging, Inc. | 320 |
1 |
| FUJIFILM Dimatix, Inc. | 331 |
1 |
| Kateeva, Inc. | 376 |
1 |
| Markem-Imaje | 24 |
1 |
| Mimaki Engineering Co., Ltd. | 799 |
1 |
| Riso Kagaku Corporation | 666 |
1 |
| Other owners | 3 |