- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 319/20 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
Patent holdings for IPC class C07C 319/20
Total number of patents in this class: 472
10-year publication summary
|
32
|
21
|
34
|
33
|
34
|
34
|
30
|
23
|
21
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9109 |
43 |
| Evonik Operations GmbH | 4172 |
35 |
| Bayer Cropscience AG | 1987 |
13 |
| Adisseo France S.A.S. | 148 |
13 |
| Mitsui Chemicals, Inc. | 3230 |
12 |
| Evonik Degussa GmbH | 1460 |
10 |
| Daikin Industries, Ltd. | 10166 |
9 |
| Kumiai Chemical Industry Co., Ltd. | 314 |
8 |
| BASF SE | 21087 |
7 |
| Centre National de La Recherche Scientifique | 10693 |
7 |
| Hoya Lens Thailand Ltd. | 582 |
7 |
| Chevron Phillips Chemical Company LP | 1851 |
6 |
| Zhejiang Nhu Company Limited | 181 |
6 |
| Wyeth LLC | 652 |
5 |
| National University Corporation Hokkaido University | 1352 |
5 |
| Zhejiang University | 3264 |
5 |
| F. Hoffmann-La Roche AG | 7933 |
4 |
| Ajinomoto Co., Inc. | 2310 |
4 |
| Arkema France | 4173 |
4 |
| Changzhou Tronly New Electronic Materials Co.,Ltd. | 81 |
4 |
| Other owners | 265 |