- 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: 479
10-year publication summary
|
23
|
34
|
36
|
35
|
41
|
31
|
26
|
21
|
15
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Chemical Company, Limited | 9016 |
40 |
| Evonik Operations GmbH | 4362 |
36 |
| Mitsui Chemicals, Inc. | 3246 |
16 |
| Bayer Cropscience AG | 1844 |
13 |
| Adisseo France S.A.S. | 155 |
12 |
| Evonik Degussa GmbH | 1379 |
10 |
| Daikin Industries, Ltd. | 10499 |
9 |
| Kumiai Chemical Industry Co., Ltd. | 314 |
8 |
| BASF SE | 21303 |
7 |
| Centre National de La Recherche Scientifique | 11023 |
7 |
| Hoya Lens Thailand Ltd. | 611 |
7 |
| Chevron Phillips Chemical Company LP | 1861 |
6 |
| Kemin Industries, Inc. | 364 |
6 |
| Zhejiang Nhu Company Limited | 194 |
6 |
| Wyeth LLC | 607 |
5 |
| Ajinomoto Co., Inc. | 2277 |
5 |
| National University Corporation Hokkaido University | 1366 |
5 |
| Zhejiang University | 3444 |
5 |
| F. Hoffmann-La Roche AG | 7837 |
4 |
| Arkema France | 4242 |
4 |
| Other owners | 268 |