- All sections
- C - Chemistry; metallurgy
- 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: 76
10-year publication summary
|
10
|
6
|
10
|
7
|
11
|
12
|
3
|
5
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evonik Operations GmbH | 4022 |
6 |
| Wisconsin Alumni Research Foundation | 3817 |
4 |
| Mitsui Chemicals, Inc. | 3189 |
4 |
| Shanghai Kechow Pharma Inc. | 17 |
4 |
| International Business Machines Corporation | 60095 |
3 |
| Nacuity Pharmaceuticals, Inc. | 41 |
3 |
| Merck Patent GmbH | 5845 |
2 |
| Sumitomo Chemical Company, Limited | 8979 |
2 |
| Showa Denko K.K. | 2340 |
2 |
| Adisseo France S.A.S. | 146 |
2 |
| Arkema France | 3889 |
2 |
| Beyondspring Pharmaceuticals, Inc. | 83 |
2 |
| Hoya Lens Thailand Ltd. | 512 |
2 |
| Kumiai Chemical Industry Co., Ltd. | 317 |
2 |
| Wysis Technology Foundation, Inc. | 3 |
2 |
| Olatec Therapeutics, Inc. | 61 |
2 |
| Wyeth LLC | 671 |
1 |
| Amgen Inc. | 3900 |
1 |
| ExxonMobil Chemical Patents Inc. | 4115 |
1 |
| API Corporation | 227 |
1 |
| Other owners | 28 |