- All sections
- C - Chemistrymetallurgy
- C09B - Organic dyes or closely-related compounds for producing dyesmordantslakes
- C09B 49/12 - Sulfur dyes from other compounds
Patent holdings for IPC class C09B 49/12
Total number of patents in this class: 30
10-year publication summary
|
4
|
2
|
0
|
0
|
0
|
2
|
0
|
1
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L' Oréal | 5536 |
11 |
| Johnson & Johnson Vision Care, Inc. | 1186 |
2 |
| FUJIFILM Corporation | 29437 |
2 |
| Ciba Specialty Chemicals Holding Inc. | 43 |
2 |
| The Procter & Gamble Company | 22043 |
1 |
| Centre National de La Recherche Scientifique | 10464 |
1 |
| Bayer MaterialScience AG | 799 |
1 |
| bioMerieux | 922 |
1 |
| Covestro Deutschland AG | 2760 |
1 |
| Dexerials Corporation | 1934 |
1 |
| Dongjin Semichem Co., Ltd. | 487 |
1 |
| Institut National des Sciences Appliquees de Rouen (insa) | 28 |
1 |
| Mississippi State University | 167 |
1 |
| Perachem Limited | 18 |
1 |
| SFC Co., Ltd. | 321 |
1 |
| Universite de Rouen | 104 |
1 |
| Agc, Inc. | 4868 |
1 |
| Other owners | 0 |