- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 21/10 - Collecting or recycling waste developer
Patent holdings for IPC class G03G 21/10
Total number of patents in this class: 690
10-year publication summary
|
66
|
52
|
53
|
54
|
82
|
65
|
49
|
48
|
29
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brother Industries, Ltd. | 12945 |
192 |
| Canon Inc. | 40216 |
97 |
| Kyocera Document Solutions Inc. | 5666 |
83 |
| Hewlett-Packard Development Company, L.P. | 25841 |
62 |
| Ricoh Company, Ltd. | 13279 |
42 |
| FUJIFILM Business Innovation Corp. | 7611 |
41 |
| Canon Kabushiki Kaisha | 7066 |
22 |
| Konica Minolta, Inc. | 8766 |
17 |
| Sharp Corporation | 10267 |
12 |
| Toshiba TEC Corporation | 3803 |
9 |
| Lexmark International, Inc. | 1665 |
9 |
| Bridgestone Corporation | 7231 |
8 |
| Bando Chemical Industries, Ltd. | 583 |
8 |
| Oki Electric Industry Co., Ltd. | 1591 |
6 |
| Sumitomo Riko Company Limited | 1065 |
5 |
| HP Indigo B.V. | 529 |
5 |
| Print-Rite ? Unicorn Image Products Co., Ltd. of Zhuhai | 224 |
4 |
| Tsuchiya Tsco Co., Ltd. | 18 |
4 |
| HP Printing Korea Co., Ltd. | 187 |
4 |
| Sharp Kabushiki Kaisha | 18734 |
4 |
| Other owners | 56 |