- All sections
- B - Performing operations; transporting
- 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: 497
10-year publication summary
|
33
|
41
|
39
|
54
|
56
|
66
|
61
|
30
|
27
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koenig & Bauer AG | 938 |
62 |
| Hewlett-Packard Development Company, L.P. | 27689 |
54 |
| Ricoh Company, Ltd. | 13066 |
16 |
| GEW (EC) Limited | 47 |
15 |
| Kyocera Corporation | 13025 |
12 |
| Heraeus Noblelight GmbH | 177 |
12 |
| Sun Chemical Corporation | 864 |
10 |
| Windmöller & Hölscher KG | 396 |
10 |
| Durr Systems, Inc. | 129 |
9 |
| Heidelberger Druckmaschinen AG | 470 |
9 |
| HP Scitex Ltd. | 64 |
9 |
| Xerox Corporation | 7150 |
8 |
| Bobst Bielefeld GmbH | 59 |
7 |
| Hoya Candeo Optronics Corporation | 39 |
6 |
| KBA-NotaSys SA | 155 |
6 |
| NK Works Co., Ltd. | 14 |
6 |
| UPM-Kymmene Oyj | 53 |
6 |
| Uteco Converting S.p.A. | 29 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 28611 |
5 |
| Komori Corporation | 149 |
5 |
| Other owners | 224 |