- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 29/42 - Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing a six-membered ring with one nitrogen atom as the only ring hetero atom
Patent holdings for IPC class C09B 29/42
Total number of patents in this class: 76
10-year publication summary
|
9
|
8
|
6
|
4
|
1
|
2
|
5
|
1
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
16 |
| Canon Kabushiki Kaisha | 6884 |
9 |
| Canon Inc. | 36841 |
6 |
| DyStar Colours Distribution GmbH | 172 |
4 |
| Huntsman Advanced Materials (Switzerland) GmbH | 131 |
4 |
| Huntsman International LLC | 708 |
4 |
| FUJIFILM Imaging Colorants Limited | 233 |
3 |
| Seiko Epson Corporation | 18724 |
2 |
| Cheil Industries Inc. | 944 |
2 |
| Milliken & Company | 1253 |
2 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
2 |
| Zeon Corporation | 3854 |
2 |
| BASF SE | 19740 |
1 |
| Merck Patent GmbH | 5909 |
1 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Fuji Photo Film Co., Ltd. | 53 |
1 |
| Archroma IP GmbH | 460 |
1 |
| Consejo Superior de Investigaciones Cientificas | 932 |
1 |
| DNP Fine Chemicals Co., Ltd. | 162 |
1 |
| DyStar Colours Deutschland GmbH | 25 |
1 |
| Other owners | 12 |