- 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
|
68
|
67
|
52
|
56
|
54
|
82
|
65
|
50
|
43
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brother Industries, Ltd. | 13000 |
184 |
| Canon Inc. | 36841 |
92 |
| Kyocera Document Solutions Inc. | 5295 |
81 |
| Hewlett-Packard Development Company, L.P. | 28538 |
58 |
| Ricoh Company, Ltd. | 13266 |
40 |
| FUJIFILM Business Innovation Corp. | 7395 |
33 |
| Canon Kabushiki Kaisha | 6884 |
22 |
| Konica Minolta, Inc. | 8349 |
17 |
| Sharp Corporation | 10015 |
14 |
| Toshiba TEC Corporation | 3877 |
11 |
| Lexmark International, Inc. | 1793 |
11 |
| Bridgestone Corporation | 7067 |
8 |
| Bando Chemical Industries, Ltd. | 570 |
8 |
| Oki Electric Industry Co., Ltd. | 1652 |
6 |
| Sumitomo Riko Company Limited | 962 |
5 |
| HP Indigo B.V. | 540 |
5 |
| Konica Minolta Business Technologies, Inc. | 1564 |
4 |
| Print-Rite ? Unicorn Image Products Co., Ltd. of Zhuhai | 237 |
4 |
| Tsuchiya Tsco Co., Ltd. | 20 |
4 |
| HP Printing Korea Co., Ltd. | 187 |
4 |
| Other owners | 59 |