- 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: 1057
10-year publication summary
|
109
|
114
|
93
|
106
|
94
|
105
|
78
|
93
|
65
|
29
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
258 |
| Ricoh Company, Ltd. | 13266 |
112 |
| FUJIFILM Business Innovation Corp. | 7395 |
112 |
| Kyocera Document Solutions Inc. | 5295 |
109 |
| Hewlett-Packard Development Company, L.P. | 28538 |
82 |
| Brother Industries, Ltd. | 13000 |
70 |
| Konica Minolta, Inc. | 8349 |
69 |
| Sharp Corporation | 10015 |
49 |
| Toshiba TEC Corporation | 3877 |
48 |
| Toshiba Corporation | 12017 |
25 |
| Konica Minolta Business Technologies, Inc. | 1564 |
21 |
| Lexmark International, Inc. | 1793 |
13 |
| Xerox Corporation | 7503 |
11 |
| Oki Electric Industry Co., Ltd. | 1652 |
9 |
| Kyocera Mita Corporation | 268 |
6 |
| Canon Kabushiki Kaisha | 6884 |
6 |
| Hewlett-Packard Indigo B.V. | 255 |
5 |
| Oce-Technologies B.V. | 475 |
5 |
| HP Indigo B.V. | 540 |
5 |
| Sharp Kabushiki Kaisha | 18957 |
4 |
| Other owners | 38 |