- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 21/20 - Humidity or temperature control
Patent holdings for IPC class G03G 21/20
Total number of patents in this class: 1054
10-year publication summary
|
109
|
114
|
93
|
106
|
94
|
105
|
78
|
96
|
69
|
55
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 37031 |
269 |
| Ricoh Company, Ltd. | 13066 |
111 |
| FUJIFILM Business Innovation Corp. | 7219 |
111 |
| Kyocera Document Solutions Inc. | 5104 |
105 |
| Hewlett-Packard Development Company, L.P. | 27689 |
79 |
| Brother Industries, Ltd. | 12862 |
69 |
| Konica Minolta, Inc. | 8382 |
69 |
| Toshiba TEC Corporation | 3863 |
48 |
| Sharp Corporation | 9668 |
47 |
| Toshiba Corporation | 11880 |
25 |
| Konica Minolta Business Technologies, Inc. | 1497 |
19 |
| Lexmark International, Inc. | 1730 |
13 |
| Xerox Corporation | 7150 |
10 |
| Oki Electric Industry Co., Ltd. | 1615 |
10 |
| Kyocera Mita Corporation | 245 |
6 |
| Canon Kabushiki Kaisha | 6882 |
6 |
| Hewlett-Packard Indigo B.V. | 246 |
5 |
| Oce-Technologies B.V. | 471 |
5 |
| HP Indigo B.V. | 530 |
5 |
| Sharp Kabushiki Kaisha | 18927 |
4 |
| Other owners | 38 |