- 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 2/21 - Ink jet for multi-colour printing
Patent holdings for IPC class B41J 2/21
Total number of patents in this class: 3289
10-year publication summary
|
301
|
315
|
345
|
414
|
366
|
354
|
304
|
248
|
191
|
70
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 18724 |
564 |
| Canon Inc. | 36841 |
374 |
| Hewlett-Packard Development Company, L.P. | 28538 |
311 |
| Brother Industries, Ltd. | 13000 |
237 |
| Ricoh Company, Ltd. | 13266 |
229 |
| FUJIFILM Corporation | 27102 |
150 |
| Mimaki Engineering Co., Ltd. | 799 |
83 |
| Xerox Corporation | 7503 |
80 |
| Memjet Technology Ltd. | 757 |
55 |
| Konica Minolta, Inc. | 8349 |
53 |
| Eastman Kodak Company | 3444 |
46 |
| Screen Holdings Co., Ltd. | 2431 |
46 |
| Kyocera Document Solutions Inc. | 5295 |
44 |
| Riso Kagaku Corporation | 666 |
42 |
| Electronics for Imaging, Inc. | 320 |
36 |
| Oce-Technologies B.V. | 475 |
33 |
| Heidelberger Druckmaschinen AG | 473 |
29 |
| Agfa NV | 642 |
27 |
| Kateeva, Inc. | 376 |
26 |
| Roland DG Corporation | 337 |
23 |
| Other owners | 801 |