- All sections
- B - Performing operationstransporting
- B41M - Printing, duplicating, marking, or copying processescolour printing
- B41M 5/323 - Organic colour formers, e.g. leuco dyes
Patent holdings for IPC class B41M 5/323
Total number of patents in this class: 211
10-year publication summary
|
15
|
24
|
14
|
25
|
24
|
18
|
12
|
16
|
9
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Agfa-Gevaert | 300 |
21 |
| Sony Corporation | 30080 |
15 |
| Ricoh Company, Ltd. | 13355 |
15 |
| Oji Holdings Corporation | 803 |
14 |
| Nippon Paper Industries Co., Ltd. | 854 |
13 |
| Mitsubishi HiTec Paper Europe GmbH | 66 |
12 |
| Agfa NV | 674 |
10 |
| Sony Group Corporation | 15934 |
10 |
| Datalase Ltd. | 106 |
7 |
| Appvion, LLC | 67 |
7 |
| Mitsubishi Chemical Corporation | 4742 |
5 |
| Segan Industries, Inc. | 29 |
5 |
| Zebra Technologies Corporation | 2396 |
5 |
| Papierfabrik August Koehler SE | 40 |
4 |
| Osaka Sealing Printing Co., Ltd. | 56 |
3 |
| Koehler Innovation & Technology GmbH | 56 |
3 |
| 3m Innovative Properties Company | 17445 |
2 |
| Illinois Tool Works Inc. | 11867 |
2 |
| FUJIFILM Corporation | 30653 |
2 |
| Yamamoto Chemicals, Inc. | 50 |
2 |
| Other owners | 54 |