- 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: 317
10-year publication summary
|
23
|
26
|
18
|
29
|
15
|
17
|
13
|
11
|
8
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30327 |
28 |
| Datalase Ltd. | 109 |
24 |
| SICPA Holding SA | 941 |
16 |
| Chromatic Technologies, Inc. | 72 |
14 |
| The Procter & Gamble Company | 21919 |
12 |
| Nippon Paper Industries Co., Ltd. | 839 |
11 |
| Sony Group Corporation | 15313 |
11 |
| Ricoh Company, Ltd. | 13309 |
10 |
| Oji Holdings Corporation | 784 |
9 |
| FUJIFILM Corporation | 30327 |
8 |
| Osaka Sealing Printing Co., Ltd. | 51 |
7 |
| Xerox Corporation | 4703 |
6 |
| Crown Packaging Technology, Inc. | 480 |
6 |
| Mitsubishi Paper Mills Limited | 227 |
6 |
| Oji Paper Co., Ltd. | 47 |
6 |
| Segan Industries, Inc. | 29 |
5 |
| Sanford, L.P. | 902 |
4 |
| Canon Kabushiki Kaisha | 7258 |
4 |
| Toshiba Corporation | 12687 |
3 |
| Ferro Corporation | 223 |
3 |
| Other owners | 124 |