- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 319/22 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides of hydropolysulfides or polysulfides
Patent holdings for IPC class C07C 319/22
Total number of patents in this class: 70
10-year publication summary
|
7
|
6
|
12
|
5
|
5
|
6
|
3
|
7
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hoya Lens Thailand Ltd. | 515 |
5 |
| DIC Corporation | 3681 |
4 |
| Nacuity Pharmaceuticals, Inc. | 41 |
4 |
| Bayer Cropscience AG | 2136 |
3 |
| Mitsui Chemicals, Inc. | 3188 |
3 |
| ImmunoGen, Inc. | 403 |
3 |
| F. Hoffmann-La Roche AG | 7951 |
2 |
| Conopco, Inc. | 4829 |
2 |
| The Yokohama Rubber Co., Ltd. | 3966 |
2 |
| May-hwa Enterprise Corporation | 5 |
2 |
| Jiangsu Hecheng Advanced Materials Co., Ltd. | 9 |
2 |
| Unilever Global IP Limited | 2081 |
2 |
| Kos Therapeutics, Inc. | 16 |
2 |
| BASF SE | 20458 |
1 |
| Centre National de La Recherche Scientifique | 10140 |
1 |
| The Goodyear Tire & Rubber Company | 2573 |
1 |
| Toray Fine Chemicals Co., Ltd. | 80 |
1 |
| Adisseo France S.A.S. | 147 |
1 |
| Akzo Nobel Chemicals International B.V. | 480 |
1 |
| Arkema Inc. | 1071 |
1 |
| Other owners | 27 |