- All sections
- B - Performing operationstransporting
- B41M - Printing, duplicating, marking, or copying processescolour printing
- B41M 5/327 - Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
Patent holdings for IPC class B41M 5/327
Total number of patents in this class: 107
10-year publication summary
|
10
|
7
|
13
|
12
|
9
|
7
|
3
|
4
|
7
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi HiTec Paper Europe GmbH | 71 |
16 |
| Papierfabrik August Koehler SE | 46 |
15 |
| Nippon Soda Co., Ltd. | 886 |
8 |
| Agfa-Gevaert | 280 |
6 |
| Appvion, LLC | 67 |
6 |
| Ricoh Company, Ltd. | 13230 |
5 |
| Chromatic Technologies, Inc. | 74 |
3 |
| Datalase Ltd. | 114 |
3 |
| Nippon Kayaku Kabushiki Kaisha | 1427 |
3 |
| Nippon Paper Industries Co., Ltd. | 812 |
3 |
| Zink Holdings LLC | 28 |
3 |
| Sony Corporation | 31518 |
2 |
| Hewlett-Packard Development Company, L.P. | 27448 |
2 |
| FUJIFILM Corporation | 28841 |
2 |
| Oji Holdings Corporation | 704 |
2 |
| The University of Hong Kong | 715 |
2 |
| Agfa NV | 653 |
2 |
| BASF SE | 20458 |
1 |
| Toshiba Corporation | 12076 |
1 |
| Eastman Kodak Company | 3035 |
1 |
| Other owners | 21 |