- 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 11/324 - Pigment inks containing carbon black
Patent holdings for IPC class C09D 11/324
Total number of patents in this class: 393
10-year publication summary
|
19
|
45
|
31
|
58
|
42
|
45
|
33
|
27
|
25
|
8
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 19240 |
49 |
| Ricoh Company, Ltd. | 14053 |
44 |
| Hewlett-Packard Development Company, L.P. | 29751 |
36 |
| Canon Inc. | 36856 |
28 |
| Cabot Corporation | 611 |
18 |
| Riso Kagaku Corporation | 704 |
18 |
| FUJIFILM Corporation | 25841 |
15 |
| LG Chem, Ltd. | 16413 |
13 |
| Agfa NV | 649 |
11 |
| Brother Industries, Ltd. | 13284 |
10 |
| Canon Kabushiki Kaisha | 6683 |
9 |
| Sakata INX Corp. | 283 |
8 |
| Kao Corporation | 4747 |
7 |
| Tokai Carbon Co., Ltd. | 95 |
7 |
| Axalta Coating Systems IP Co., LLC | 447 |
6 |
| DIC Corporation | 3313 |
6 |
| DuPont Electronics, Inc. | 381 |
6 |
| Kyocera Document Solutions Inc. | 5761 |
5 |
| Xerox Corporation | 6811 |
4 |
| Eastman Kodak Company | 4117 |
4 |
| Other owners | 89 |