- 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: 289
10-year publication summary
|
9
|
31
|
25
|
45
|
49
|
36
|
43
|
17
|
11
|
4
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Memjet Technology Ltd. | 876 |
44 |
| Hewlett-Packard Development Company, L.P. | 29764 |
33 |
| Seiko Epson Corporation | 19227 |
30 |
| Memjet Technology Limited | 72 |
21 |
| Padaluma Ink-jet-solutions GmbH & Co. KG | 18 |
15 |
| Ricoh Company, Ltd. | 14097 |
12 |
| Sato Holdings Kabushiki Kaisha | 607 |
12 |
| Canon Inc. | 36837 |
10 |
| Brother Industries, Ltd. | 13288 |
8 |
| Zebra Technologies Corporation | 1382 |
7 |
| Prototype and Production Systems, Inc. | 11 |
7 |
| Eastman Kodak Company | 4130 |
6 |
| Mimaki Engineering Co., Ltd. | 801 |
4 |
| Seiko Instruments Inc. | 708 |
3 |
| Miyakoshi Printing Machinery Co., Ltd. | 99 |
3 |
| Xaar Technology Limited | 138 |
3 |
| The Procter & Gamble Company | 22479 |
2 |
| Xerox Corporation | 6818 |
2 |
| FUJIFILM Corporation | 25767 |
2 |
| Konica Minolta, Inc. | 8207 |
2 |
| Other owners | 63 |