- All sections
- B - Performing operationstransporting
- B41M - Printing, duplicating, marking, or copying processescolour printing
- B41M 5/28 - Thermography using thermo-chromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat decomposable compounds, e.g. gas liberating
Patent holdings for IPC class B41M 5/28
Total number of patents in this class: 318
10-year publication summary
|
23
|
26
|
18
|
29
|
15
|
17
|
14
|
11
|
8
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 29887 |
28 |
| Datalase Ltd. | 105 |
25 |
| SICPA Holding SA | 961 |
16 |
| Chromatic Technologies, Inc. | 72 |
14 |
| The Procter & Gamble Company | 21887 |
12 |
| Nippon Paper Industries Co., Ltd. | 854 |
11 |
| Sony Group Corporation | 16234 |
11 |
| Ricoh Company, Ltd. | 13413 |
10 |
| Oji Holdings Corporation | 812 |
9 |
| FUJIFILM Corporation | 30808 |
8 |
| Osaka Sealing Printing Co., Ltd. | 57 |
7 |
| Xerox Corporation | 4387 |
6 |
| Crown Packaging Technology, Inc. | 476 |
6 |
| Oji Paper Co., Ltd. | 43 |
6 |
| Mitsubishi Paper Mills Limited | 224 |
5 |
| Segan Industries, Inc. | 29 |
5 |
| Sanford, L.P. | 880 |
4 |
| Canon Kabushiki Kaisha | 7417 |
4 |
| Toshiba Corporation | 12727 |
3 |
| Ferro Corporation | 137 |
3 |
| Other owners | 125 |