- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 21/10 - Collecting or recycling waste developer
Patent holdings for IPC class G03G 21/10
Total number of patents in this class: 670
10-year publication summary
|
67
|
52
|
56
|
54
|
82
|
65
|
50
|
46
|
27
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brother Industries, Ltd. | 12908 |
190 |
| Canon Inc. | 38148 |
90 |
| Kyocera Document Solutions Inc. | 5366 |
81 |
| Hewlett-Packard Development Company, L.P. | 27461 |
61 |
| Ricoh Company, Ltd. | 13216 |
40 |
| FUJIFILM Business Innovation Corp. | 7426 |
35 |
| Canon Kabushiki Kaisha | 6938 |
22 |
| Konica Minolta, Inc. | 8535 |
17 |
| Sharp Corporation | 10191 |
12 |
| Lexmark International, Inc. | 1703 |
10 |
| Toshiba TEC Corporation | 3692 |
9 |
| Bridgestone Corporation | 7147 |
8 |
| Bando Chemical Industries, Ltd. | 581 |
8 |
| Oki Electric Industry Co., Ltd. | 1600 |
6 |
| Sumitomo Riko Company Limited | 1015 |
5 |
| HP Indigo B.V. | 529 |
5 |
| Print-Rite ? Unicorn Image Products Co., Ltd. of Zhuhai | 231 |
4 |
| Tsuchiya Tsco Co., Ltd. | 19 |
4 |
| HP Printing Korea Co., Ltd. | 187 |
4 |
| Sharp Kabushiki Kaisha | 18867 |
4 |
| Other owners | 55 |