- 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 25/34 - Bodily-changeable print heads or carriages
Patent holdings for IPC class B41J 25/34
Total number of patents in this class: 309
10-year publication summary
|
31
|
25
|
45
|
49
|
36
|
43
|
20
|
12
|
26
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Memjet Technology Ltd. | 757 |
55 |
| Hewlett-Packard Development Company, L.P. | 28538 |
32 |
| Seiko Epson Corporation | 18724 |
31 |
| Memjet Technology Limited | 75 |
21 |
| Padaluma Ink-jet-solutions GmbH & Co. KG | 18 |
15 |
| Ricoh Company, Ltd. | 13266 |
14 |
| Canon Inc. | 36841 |
12 |
| Sato Holdings Kabushiki Kaisha | 659 |
12 |
| Prototype and Production Systems, Inc. | 10 |
10 |
| Brother Industries, Ltd. | 13000 |
8 |
| Zebra Technologies Corporation | 1689 |
7 |
| Eastman Kodak Company | 3444 |
6 |
| Mimaki Engineering Co., Ltd. | 799 |
5 |
| Electronics for Imaging, Inc. | 320 |
3 |
| Xaar Technology Limited | 138 |
3 |
| The Procter & Gamble Company | 22178 |
2 |
| Xerox Corporation | 7503 |
2 |
| FUJIFILM Corporation | 27102 |
2 |
| Konica Minolta, Inc. | 8349 |
2 |
| Seiko Instruments Inc. | 660 |
2 |
| Other owners | 65 |