- 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: 36
10-year publication summary
|
3
|
3
|
4
|
5
|
2
|
6
|
3
|
3
|
4
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Facebook Technologies, LLC | 788 |
4 |
| Mitsubishi Chemical Corporation | 4492 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2640 |
3 |
| Covestro Deutschland AG | 2725 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3443 |
2 |
| The University of Chicago | 1390 |
2 |
| The University of Tokyo | 4153 |
2 |
| Atossa Therapeutics, Inc. | 53 |
2 |
| London Pharmaceuticals and Research Corporation | 27 |
2 |
| Tapi Croatia Industries Ltd | 9 |
2 |
| Bristol-myers Squibb Company | 4875 |
1 |
| FUJIFILM Corporation | 29251 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 5602 |
1 |
| Canopy Growth Corporation | 219 |
1 |
| CoLucid Pharmaceuticals, Inc. | 13 |
1 |
| Concentric Analgesics, Inc. | 23 |
1 |
| Duk San Neolux Co., Ltd. | 640 |
1 |
| Ligand Pharmaceuticals Incorporated | 119 |
1 |
| Nissan Chemical Corporation | 1982 |
1 |
| Guangzhou Lushan New Material Co., Ltd. | 7 |
1 |
| Other owners | 2 |