- All sections
- G - Physics
- G03G - Electrographyelectrophotographymagnetography
- G03G 9/09 - Colouring agents for toner particles
Patent holdings for IPC class G03G 9/09
Total number of patents in this class: 851
10-year publication summary
|
120
|
108
|
60
|
75
|
47
|
51
|
31
|
36
|
28
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 41573 |
123 |
| FUJIFILM Business Innovation Corp. | 7774 |
121 |
| Xerox Corporation | 5899 |
73 |
| Ricoh Company, Ltd. | 13348 |
66 |
| Canon Kabushiki Kaisha | 7199 |
48 |
| Zeon Corporation | 4123 |
47 |
| Toshiba TEC Corporation | 3866 |
45 |
| Konica Minolta, Inc. | 8960 |
37 |
| Hewlett-Packard Development Company, L.P. | 25471 |
21 |
| Eastman Kodak Company | 2752 |
20 |
| Konica Minolta Business Technologies, Inc. | 1370 |
20 |
| Toshiba Corporation | 12532 |
19 |
| Oki Electric Industry Co., Ltd. | 1582 |
19 |
| Kao Corporation | 5028 |
12 |
| Mitsubishi Chemical Corporation | 4661 |
12 |
| FUJIFILM Corporation | 30010 |
9 |
| Kyocera Document Solutions Inc. | 5906 |
9 |
| Sharp Corporation | 10358 |
7 |
| Lexmark International, Inc. | 1614 |
7 |
| Cabot Corporation | 550 |
7 |
| Other owners | 129 |