- All sections
- C - Chemistry; metallurgy
- C09B - Organic dyes or closely-related compounds for producing dyes; mordants; lakes
- C09B 62/513 - Disazo or polyazo dyes
Patent holdings for IPC class C09B 62/513
Total number of patents in this class: 41
10-year publication summary
1
|
0
|
1
|
1
|
2
|
2
|
2
|
2
|
1
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Zhejiang Keyong Chemical Co., Ltd. | 16 |
8 |
Huntsman Advanced Materials (Switzerland) GmbH | 131 |
5 |
Colourtex Industries Limited | 8 |
4 |
DyStar Colours Deutschland GmbH | 25 |
4 |
Shanghai Kehua Dyestuff Industry Co., Ltd. | 10 |
4 |
DyStar Colours Distribution GmbH | 172 |
3 |
DyStar Textilfarben GmbH & Co. Deutschland KG | 60 |
3 |
Archroma IP GmbH | 460 |
1 |
Dalian University of Technology | 1387 |
1 |
DIC Corporation | 3597 |
1 |
Everlight USA, Inc. | 6 |
1 |
Huntsman International LLC | 708 |
1 |
Nippon Kayaku Kabushiki Kaisha | 1400 |
1 |
Huntsman Textile Effects (Switzerland) GmbH | 138 |
1 |
Atul Limited | 3 |
1 |
3 Wins Digital Technology Co., Ltd. | 1 |
1 |
Shanghai Celludye Imaging Colorants Co., Ltd. | 1 |
1 |
Other owners | 0 |