- 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 2/18 - Ink recirculation systems
Patent holdings for IPC class B41J 2/18
Total number of patents in this class: 1076
10-year publication summary
|
49
|
54
|
69
|
94
|
123
|
155
|
121
|
117
|
78
|
14
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 29751 |
164 |
| Canon Inc. | 36856 |
126 |
| Seiko Epson Corporation | 19240 |
117 |
| Konica Minolta, Inc. | 8205 |
65 |
| Brother Industries, Ltd. | 13284 |
59 |
| Ricoh Company, Ltd. | 14053 |
56 |
| Memjet Technology Ltd. | 868 |
44 |
| Toshiba TEC Corporation | 3902 |
39 |
| FUJIFILM Corporation | 25841 |
35 |
| Riso Kagaku Corporation | 704 |
31 |
| Kyocera Corporation | 12050 |
29 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1236 |
18 |
| Mimaki Engineering Co., Ltd. | 803 |
14 |
| SII Printek Inc. | 136 |
14 |
| Canon Kabushiki Kaisha | 6683 |
12 |
| Xerox Corporation | 6811 |
11 |
| FUJIFILM Dimatix, Inc. | 332 |
10 |
| Brother Kogyo Kabushikikaisha | 1657 |
10 |
| Roland DG Corporation | 348 |
9 |
| Eastman Kodak Company | 4117 |
8 |
| Other owners | 205 |