- All sections
- C - Chemistry; metallurgy
- C09D - Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor
- C09D 11/326 - Pigment inks characterised by the pigment dispersant
Patent holdings for IPC class C09D 11/326
Total number of patents in this class: 742
10-year publication summary
|
47
|
72
|
71
|
91
|
51
|
46
|
59
|
39
|
41
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ricoh Company, Ltd. | 13216 |
66 |
| FUJIFILM Corporation | 28805 |
61 |
| Hewlett-Packard Development Company, L.P. | 27461 |
51 |
| Seiko Epson Corporation | 18989 |
46 |
| Kao Corporation | 4916 |
41 |
| DIC Corporation | 3669 |
33 |
| Canon Inc. | 38148 |
22 |
| DuPont Electronics, Inc. | 375 |
20 |
| Riso Kagaku Corporation | 658 |
19 |
| Konica Minolta, Inc. | 8535 |
17 |
| Nippon Kayaku Kabushiki Kaisha | 1429 |
17 |
| Brother Industries, Ltd. | 12908 |
16 |
| Agfa NV | 653 |
16 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 360 |
15 |
| Lubrizol Advanced Materials, Inc. | 941 |
15 |
| Sakata INX Corp. | 382 |
15 |
| FUJIFILM Imaging Colorants Limited | 224 |
14 |
| LG Chem, Ltd. | 17639 |
12 |
| Cabot Corporation | 550 |
12 |
| Kyocera Document Solutions Inc. | 5366 |
10 |
| Other owners | 224 |