- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 21/12 - Toner waste containers
Patent holdings for IPC class G03G 21/12
Total number of patents in this class: 463
10-year publication summary
|
38
|
43
|
31
|
38
|
42
|
44
|
49
|
36
|
30
|
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 |
160 |
| Canon Inc. | 36841 |
68 |
| Hewlett-Packard Development Company, L.P. | 28538 |
41 |
| Kyocera Document Solutions Inc. | 5295 |
36 |
| FUJIFILM Business Innovation Corp. | 7395 |
35 |
| Ricoh Company, Ltd. | 13266 |
29 |
| Sharp Corporation | 10015 |
18 |
| Lexmark International, Inc. | 1793 |
14 |
| Toshiba TEC Corporation | 3877 |
12 |
| Oki Electric Industry Co., Ltd. | 1652 |
8 |
| Konica Minolta, Inc. | 8349 |
6 |
| Konica Minolta Business Technologies, Inc. | 1564 |
5 |
| Print-Rite ? Unicorn Image Products Co., Ltd. of Zhuhai | 237 |
4 |
| Toshiba Corporation | 12017 |
3 |
| Canon Kabushiki Kaisha | 6884 |
3 |
| Xerox Corporation | 7503 |
2 |
| General Plastic Industrial Co., Ltd. | 46 |
2 |
| HP Printing Korea Co., Ltd. | 187 |
2 |
| Seiko Epson Corporation | 18724 |
1 |
| Eastman Kodak Company | 3444 |
1 |
| Other owners | 13 |