- 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 3/42 - Two or more complete typewriters coupled for simultaneous operation
Patent holdings for IPC class B41J 3/42
Total number of patents in this class: 22
10-year publication summary
|
4
|
0
|
1
|
0
|
1
|
1
|
3
|
3
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 3891 |
3 |
| Premier Print & Services Group, Inc. | 13 |
2 |
| Brother Industries, Ltd. | 13000 |
1 |
| Eastman Kodak Company | 3444 |
1 |
| Oki Electric Industry Co., Ltd. | 1652 |
1 |
| Beijing Zhongke Nano-Think Print Technology Co., Ltd. | 5 |
1 |
| Canon Finetech Inc. | 75 |
1 |
| Eco Compteur | 25 |
1 |
| Electronics for Imaging, Inc. | 320 |
1 |
| Hauni Maschinenbau AG | 89 |
1 |
| I. Mer Co., Ltd. | 32 |
1 |
| Iconex, LLC | 179 |
1 |
| ID Technology LLC | 29 |
1 |
| Masonite Corporation | 461 |
1 |
| Riso Kagaku Corporation | 666 |
1 |
| Screen Holdings Co., Ltd. | 2431 |
1 |
| Toppan Printing Co., Ltd. | 2212 |
1 |
| Toyo Seikan Kaisha, Ltd. | 419 |
1 |
| Brother Kogyo Kabushikikaisha | 1709 |
1 |
| Other owners | 0 |