- All sections
- B - Performing operationstransporting
- B41J - Typewritersselective printing mechanisms, i.e. mechanisms printing otherwise than from a formecorrection of typographical errors
- B41J 2/18 - Ink recirculation systems
Patent holdings for IPC class B41J 2/18
Total number of patents in this class: 1224
10-year publication summary
|
69
|
94
|
123
|
155
|
121
|
118
|
89
|
80
|
104
|
56
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 39660 |
176 |
| Hewlett-Packard Development Company, L.P. | 25910 |
165 |
| Seiko Epson Corporation | 19316 |
126 |
| Konica Minolta, Inc. | 8701 |
76 |
| Brother Industries, Ltd. | 12966 |
65 |
| Ricoh Company, Ltd. | 13198 |
51 |
| Kyocera Corporation | 13758 |
45 |
| FUJIFILM Corporation | 29295 |
42 |
| Memjet Technology Ltd. | 641 |
42 |
| Riso Technologies Corporation | 260 |
33 |
| Riso Kagaku Corporation | 657 |
32 |
| Kyocera Document Solutions Inc. | 5544 |
29 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1453 |
20 |
| Mimaki Engineering Co., Ltd. | 846 |
17 |
| Screen Holdings Co., Ltd. | 2798 |
15 |
| Kateeva, Inc. | 393 |
14 |
| SII Printek Inc. | 142 |
14 |
| Canon Kabushiki Kaisha | 7051 |
10 |
| FUJIFILM Dimatix, Inc. | 285 |
9 |
| Brother Kogyo Kabushikikaisha | 1755 |
9 |
| Other owners | 234 |