- All sections
- B - Performing operationstransporting
- B41J - Typewritersselective printing mechanisms, i.e. mechanisms printing otherwise than from a formecorrection of typographical errors
- B41J 3/54 - Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
Patent holdings for IPC class B41J 3/54
Total number of patents in this class: 441
10-year publication summary
|
36
|
58
|
36
|
53
|
36
|
26
|
33
|
22
|
31
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brother Industries, Ltd. | 12831 |
30 |
| Seiko Epson Corporation | 20256 |
27 |
| Koenig & Bauer AG | 964 |
21 |
| Ricoh Company, Ltd. | 13342 |
18 |
| Hewlett-Packard Development Company, L.P. | 25184 |
14 |
| Canon Inc. | 43817 |
11 |
| Memjet Technology Ltd. | 600 |
11 |
| Eastman Kodak Company | 2603 |
9 |
| Projecta Engineering S.r.l. | 26 |
9 |
| Electronics for Imaging, Inc. | 327 |
7 |
| Kateeva, Inc. | 394 |
7 |
| GPCP IP Holdings LLC | 1529 |
7 |
| Ceraloc Innovation AB | 171 |
6 |
| The Procter & Gamble Company | 21855 |
5 |
| Xerox Corporation | 4391 |
5 |
| KHS GmbH | 1452 |
5 |
| M & R Printing Equipment, Inc. | 79 |
5 |
| manroland AG | 98 |
5 |
| Riso Kagaku Corporation | 642 |
5 |
| FUJIFILM Corporation | 30514 |
4 |
| Other owners | 230 |