- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 271/48 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to carbon atoms of six-membered aromatic rings with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by singly-bound oxygen atoms
Patent holdings for IPC class C07C 271/48
Total number of patents in this class: 37
10-year publication summary
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3
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3
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4
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5
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2
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6
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3
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2
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4
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5
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Facebook Technologies, LLC | 784 |
4 |
| Mitsubishi Chemical Corporation | 4585 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2705 |
3 |
| Atossa Therapeutics, Inc. | 60 |
3 |
| Covestro Deutschland AG | 2774 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3485 |
2 |
| The University of Chicago | 1434 |
2 |
| The University of Tokyo | 4229 |
2 |
| London Pharmaceuticals and Research Corporation | 25 |
2 |
| Tapi Croatia Industries Ltd | 9 |
2 |
| Bristol-myers Squibb Company | 4840 |
1 |
| FUJIFILM Corporation | 29713 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 5715 |
1 |
| Canopy Growth Corporation | 223 |
1 |
| CoLucid Pharmaceuticals, Inc. | 14 |
1 |
| Concentric Analgesics, Inc. | 23 |
1 |
| Duk San Neolux Co., Ltd. | 661 |
1 |
| Ligand Pharmaceuticals Incorporated | 170 |
1 |
| Nissan Chemical Corporation | 2079 |
1 |
| Guangzhou Lushan New Material Co., Ltd. | 8 |
1 |
| Other owners | 2 |