- All sections
- B - Performing operationstransporting
- B41M - Printing, duplicating, marking, or copying processescolour printing
- B41M 5/333 - Colour developing components therefor, e.g. acidic compounds
Patent holdings for IPC class B41M 5/333
Total number of patents in this class: 358
10-year publication summary
|
20
|
32
|
18
|
22
|
28
|
27
|
24
|
29
|
17
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Paper Industries Co., Ltd. | 832 |
34 |
| Mitsubishi HiTec Paper Europe GmbH | 70 |
26 |
| Nippon Soda Co., Ltd. | 889 |
26 |
| Papierfabrik August Koehler SE | 43 |
21 |
| Oji Holdings Corporation | 752 |
20 |
| Nippon Kayaku Kabushiki Kaisha | 1456 |
15 |
| Appvion, LLC | 65 |
14 |
| Ricoh Company, Ltd. | 13368 |
13 |
| Mitsubishi Chemical Corporation | 4625 |
13 |
| Sony Group Corporation | 14674 |
13 |
| Agfa-Gevaert | 292 |
10 |
| Datalase Ltd. | 109 |
10 |
| Sanko Co., Ltd. | 50 |
9 |
| Osaka Sealing Printing Co., Ltd. | 48 |
8 |
| Sony Corporation | 30735 |
7 |
| Nicca Chemical Co., Ltd. | 137 |
7 |
| Segan Industries, Inc. | 29 |
7 |
| Agfa NV | 658 |
7 |
| FUJIFILM Corporation | 29911 |
4 |
| API Corporation | 196 |
4 |
| Other owners | 90 |