- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 271/22 - Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms 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 carboxyl groups
Patent holdings for IPC class C07C 271/22
Total number of patents in this class: 679
10-year publication summary
|
52
|
60
|
60
|
49
|
47
|
33
|
30
|
46
|
40
|
18
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Arcturus Therapeutics, Inc. | 169 |
23 |
| Theravance Biopharma R&D IP, LLC | 461 |
21 |
| Corteva Agriscience LLC | 2660 |
21 |
| Novartis AG | 10883 |
17 |
| Xwpharma Ltd. | 57 |
10 |
| The Johns Hopkins University | 5642 |
9 |
| Chugai Seiyaku Kabushiki Kaisha | 1338 |
9 |
| F. Hoffmann-La Roche AG | 7923 |
8 |
| Lier Chemical Co., Ltd. | 41 |
7 |
| The University of Tokyo | 4153 |
7 |
| XenoPort, Inc. | 96 |
7 |
| FUJIFILM Corporation | 29251 |
6 |
| Aileron Therapeutics, Inc. | 80 |
6 |
| MedImmune Limited | 613 |
6 |
| Nissan Chemical Industries, Ltd. | 1725 |
6 |
| Genentech, Inc. | 3968 |
5 |
| Centre National de La Recherche Scientifique | 10350 |
5 |
| Quadriga Biosciences, Inc. | 21 |
5 |
| Teva Pharmaceutical Industries Ltd. | 797 |
5 |
| Teva Pharmaceuticals USA, Inc. | 905 |
5 |
| Other owners | 491 |