- 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 3/54 - 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: 395
10-year publication summary
|
22
|
19
|
36
|
58
|
36
|
53
|
32
|
25
|
33
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brother Industries, Ltd. | 13000 |
27 |
| Seiko Epson Corporation | 18724 |
25 |
| Koenig & Bauer AG | 958 |
20 |
| Hewlett-Packard Development Company, L.P. | 28538 |
13 |
| Memjet Technology Ltd. | 757 |
11 |
| Xerox Corporation | 7503 |
10 |
| Ricoh Company, Ltd. | 13266 |
10 |
| Eastman Kodak Company | 3444 |
10 |
| Projecta Engineering S.r.l. | 26 |
9 |
| Canon Inc. | 36841 |
8 |
| GPCP IP Holdings LLC | 1733 |
7 |
| Electronics for Imaging, Inc. | 320 |
6 |
| KHS GmbH | 1381 |
6 |
| The Procter & Gamble Company | 22178 |
5 |
| Ceraloc Innovation AB | 156 |
5 |
| Kodak ALARIS Inc. | 401 |
5 |
| manroland AG | 109 |
5 |
| Riso Kagaku Corporation | 666 |
5 |
| Mitsubishi Electric Corporation | 43934 |
4 |
| Toshiba TEC Corporation | 3877 |
4 |
| Other owners | 200 |