- 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 19/20 - Positive-feed character-spacing mechanisms
Patent holdings for IPC class B41J 19/20
Total number of patents in this class: 201
10-year publication summary
|
25
|
19
|
14
|
15
|
18
|
24
|
22
|
10
|
9
|
1
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19227 |
45 |
| Brother Industries, Ltd. | 13288 |
27 |
| Canon Inc. | 36837 |
25 |
| Hewlett-Packard Development Company, L.P. | 29764 |
22 |
| Ricoh Company, Ltd. | 14097 |
11 |
| Mimaki Engineering Co., Ltd. | 801 |
11 |
| Oce-Technologies B.V. | 495 |
6 |
| Eastman Kodak Company | 4130 |
3 |
| Toshiba TEC Corporation | 3910 |
3 |
| Konica Minolta, Inc. | 8207 |
3 |
| Casio Computer Co., Ltd. | 3335 |
3 |
| Dieffenbacher System-automation GmbH | 9 |
3 |
| Agfa Graphics NV | 308 |
2 |
| Durst Phototechnik Digital Technology GmbH | 39 |
2 |
| Panotec SRL | 48 |
2 |
| Riso Kagaku Corporation | 704 |
2 |
| Roland DG Corporation | 348 |
2 |
| Seiko I Infotech Inc. | 65 |
2 |
| Micropply Limited | 11 |
2 |
| Xerox Corporation | 6818 |
1 |
| Other owners | 24 |