- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 21/20 - Humidity or temperature control
Patent holdings for IPC class G03G 21/20
Total number of patents in this class: 1182
10-year publication summary
|
93
|
106
|
94
|
105
|
78
|
98
|
75
|
78
|
75
|
54
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 44011 |
340 |
| FUJIFILM Business Innovation Corp. | 7956 |
134 |
| Kyocera Document Solutions Inc. | 6286 |
123 |
| Ricoh Company, Ltd. | 13336 |
117 |
| Hewlett-Packard Development Company, L.P. | 25172 |
81 |
| Konica Minolta, Inc. | 9143 |
76 |
| Brother Industries, Ltd. | 12823 |
70 |
| Toshiba TEC Corporation | 3905 |
50 |
| Sharp Corporation | 10575 |
48 |
| Toshiba Corporation | 12584 |
23 |
| Konica Minolta Business Technologies, Inc. | 1314 |
16 |
| Lexmark International, Inc. | 1534 |
14 |
| Oki Electric Industry Co., Ltd. | 1572 |
9 |
| Xerox Corporation | 4390 |
8 |
| Canon Kabushiki Kaisha | 7362 |
6 |
| Hewlett-Packard Indigo B.V. | 246 |
5 |
| Oce-Technologies B.V. | 440 |
5 |
| HP Indigo B.V. | 529 |
5 |
| ETRIA Co., Ltd. | 108 |
5 |
| Kyocera Mita Corporation | 122 |
4 |
| Other owners | 43 |