- 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: 741
10-year publication summary
|
62
|
47
|
72
|
71
|
91
|
51
|
46
|
58
|
39
|
16
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ricoh Company, Ltd. | 13266 |
68 |
| FUJIFILM Corporation | 27102 |
61 |
| Hewlett-Packard Development Company, L.P. | 28538 |
52 |
| Seiko Epson Corporation | 18724 |
46 |
| Kao Corporation | 4843 |
40 |
| DIC Corporation | 3597 |
30 |
| DuPont Electronics, Inc. | 379 |
21 |
| Riso Kagaku Corporation | 666 |
19 |
| Canon Inc. | 36841 |
18 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
18 |
| Konica Minolta, Inc. | 8349 |
17 |
| Brother Industries, Ltd. | 13000 |
16 |
| Lubrizol Advanced Materials, Inc. | 949 |
15 |
| FUJIFILM Imaging Colorants Limited | 233 |
14 |
| Sakata INX Corp. | 345 |
14 |
| Agfa NV | 642 |
14 |
| Canon Kabushiki Kaisha | 6884 |
14 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 354 |
13 |
| LG Chem, Ltd. | 17205 |
12 |
| Cabot Corporation | 575 |
12 |
| Other owners | 227 |