- All sections
- B - Performing operationstransporting
- B41F - Printing machines or presses
- B41F 23/04 - Devices for treating the surfaces of sheets, webs or other articles in connection with printing by heat drying, by cooling, by applying powders
Patent holdings for IPC class B41F 23/04
Total number of patents in this class: 517
10-year publication summary
|
40
|
37
|
53
|
56
|
61
|
60
|
27
|
26
|
19
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koenig & Bauer AG | 976 |
69 |
| Hewlett-Packard Development Company, L.P. | 25719 |
54 |
| Ricoh Company, Ltd. | 13385 |
16 |
| GEW (EC) Limited | 46 |
14 |
| Kyocera Corporation | 14005 |
12 |
| Heraeus Noblelight GmbH | 129 |
12 |
| Sun Chemical Corporation | 837 |
10 |
| Durr Systems, Inc. | 110 |
9 |
| Heidelberger Druckmaschinen AG | 474 |
9 |
| HP Scitex Ltd. | 64 |
9 |
| Windmöller & Hölscher KG | 384 |
9 |
| Xerox Corporation | 6979 |
8 |
| Bobst Bielefeld GmbH | 60 |
7 |
| Hoya Candeo Optronics Corporation | 34 |
6 |
| KBA-NotaSys SA | 144 |
6 |
| NK Works Co., Ltd. | 14 |
6 |
| Screen Holdings Co., Ltd. | 2898 |
6 |
| UPM-Kymmene Oyj | 53 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 32139 |
5 |
| Komori Corporation | 148 |
5 |
| Other owners | 239 |