- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 319/12 - Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols by reactions not involving the formation of mercapto groups
Patent holdings for IPC class C07C 319/12
Total number of patents in this class: 82
10-year publication summary
|
8
|
6
|
9
|
6
|
10
|
10
|
3
|
5
|
4
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evonik Operations GmbH | 4154 |
6 |
| Wisconsin Alumni Research Foundation | 3888 |
4 |
| Mitsui Chemicals, Inc. | 3232 |
4 |
| Hoya Lens Thailand Ltd. | 565 |
4 |
| Shanghai Kechow Pharma Inc. | 17 |
4 |
| International Business Machines Corporation | 61433 |
3 |
| Nacuity Pharmaceuticals, Inc. | 40 |
3 |
| Merck Patent GmbH | 5824 |
2 |
| Sumitomo Chemical Company, Limited | 9047 |
2 |
| Showa Denko K.K. | 2204 |
2 |
| Adisseo France S.A.S. | 147 |
2 |
| Arkema France | 4164 |
2 |
| Beyondspring Pharmaceuticals, Inc. | 83 |
2 |
| Kumiai Chemical Industry Co., Ltd. | 308 |
2 |
| Wysis Technology Foundation, Inc. | 3 |
2 |
| Olatec Therapeutics, Inc. | 61 |
2 |
| Wyeth LLC | 657 |
1 |
| Amgen Inc. | 4106 |
1 |
| ExxonMobil Chemical Patents Inc. | 3976 |
1 |
| API Corporation | 224 |
1 |
| Other owners | 32 |