- All sections
- G - Physics
- G03G - Electrography; electrophotography; magnetography
- G03G 9/09 - Colouring agents for toner particles
Patent holdings for IPC class G03G 9/09
Total number of patents in this class: 826
10-year publication summary
|
74
|
70
|
120
|
110
|
60
|
75
|
45
|
50
|
30
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Inc. | 36841 |
116 |
| FUJIFILM Business Innovation Corp. | 7395 |
108 |
| Xerox Corporation | 7503 |
74 |
| Ricoh Company, Ltd. | 13266 |
63 |
| Canon Kabushiki Kaisha | 6884 |
50 |
| Zeon Corporation | 3854 |
47 |
| Toshiba TEC Corporation | 3877 |
46 |
| Konica Minolta, Inc. | 8349 |
36 |
| Hewlett-Packard Development Company, L.P. | 28538 |
23 |
| Toshiba Corporation | 12017 |
21 |
| Konica Minolta Business Technologies, Inc. | 1564 |
21 |
| Eastman Kodak Company | 3444 |
20 |
| Oki Electric Industry Co., Ltd. | 1652 |
18 |
| Mitsubishi Chemical Corporation | 4313 |
11 |
| FUJIFILM Corporation | 27102 |
10 |
| Kao Corporation | 4843 |
8 |
| Kyocera Document Solutions Inc. | 5295 |
8 |
| Lexmark International, Inc. | 1793 |
7 |
| Cabot Corporation | 575 |
6 |
| TIGER Coatings GmbH & Co. KG | 105 |
6 |
| Other owners | 127 |