- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 303/10 - Preparation of esters or amides of sulfuric acidsPreparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfur dioxide and halogen or by reaction with sulfuryl halides
Patent holdings for IPC class C07C 303/10
Total number of patents in this class: 5
10-year publication summary
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Seika Chemicals Co., Ltd. | 1054 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3557 |
1 |
| Dow Global Technologies LLC | 10437 |
1 |
| Sheeta Global Tech Corp. | 2 |
1 |
| Other owners | 0 |