- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 21/12 - Toner waste containers
Patent holdings for IPC class G03G 21/12
Total number of patents in this class: 521
10-year publication summary
|
31
|
38
|
42
|
44
|
50
|
36
|
34
|
30
|
35
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brother Industries, Ltd. | 12836 |
167 |
| Canon Inc. | 44134 |
94 |
| Hewlett-Packard Development Company, L.P. | 25174 |
48 |
| Kyocera Document Solutions Inc. | 6323 |
42 |
| FUJIFILM Business Innovation Corp. | 7970 |
40 |
| Ricoh Company, Ltd. | 13334 |
35 |
| Sharp Corporation | 10847 |
17 |
| Lexmark International, Inc. | 1534 |
13 |
| Toshiba TEC Corporation | 3909 |
12 |
| Oki Electric Industry Co., Ltd. | 1574 |
8 |
| Konica Minolta, Inc. | 9159 |
6 |
| Konica Minolta Business Technologies, Inc. | 1314 |
5 |
| Print-Rite ? Unicorn Image Products Co., Ltd. of Zhuhai | 223 |
4 |
| Canon Kabushiki Kaisha | 7369 |
3 |
| Toshiba Corporation | 12625 |
2 |
| Avision Inc. | 280 |
2 |
| General Plastic Industrial Co., Ltd. | 49 |
2 |
| POSCO Co., Ltd. | 2025 |
2 |
| HP Printing Korea Co., Ltd. | 185 |
2 |
| LG Chem, Ltd. | 17956 |
1 |
| Other owners | 16 |