- All sections
- B - Performing operationstransporting
- B41J - Typewritersselective printing mechanisms, i.e. mechanisms printing otherwise than from a formecorrection 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: 3962
10-year publication summary
|
345
|
414
|
366
|
356
|
314
|
272
|
263
|
321
|
246
|
189
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20365 |
668 |
| Canon Inc. | 44134 |
476 |
| Hewlett-Packard Development Company, L.P. | 25174 |
309 |
| Ricoh Company, Ltd. | 13334 |
285 |
| Brother Industries, Ltd. | 12836 |
271 |
| FUJIFILM Corporation | 30628 |
182 |
| Mimaki Engineering Co., Ltd. | 932 |
106 |
| Kyocera Document Solutions Inc. | 6323 |
101 |
| Konica Minolta, Inc. | 9159 |
76 |
| Xerox Corporation | 4386 |
69 |
| Screen Holdings Co., Ltd. | 3198 |
68 |
| Memjet Technology Ltd. | 598 |
62 |
| Riso Kagaku Corporation | 644 |
50 |
| Eastman Kodak Company | 2586 |
45 |
| Electronics for Imaging, Inc. | 325 |
42 |
| Kyocera Corporation | 14433 |
37 |
| Agfa NV | 671 |
36 |
| Canon Production Printing Holding B.V. | 283 |
34 |
| Heidelberger Druckmaschinen AG | 500 |
32 |
| Oce-Technologies B.V. | 439 |
32 |
| Other owners | 981 |