- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 281/20 - Derivatives of carbonic acid containing functional groups covered by groups in which at least one nitrogen atom of these functional groups is further bound to another nitrogen atom not being part of a nitro or nitroso group the two nitrogen atoms of the functional groups being doubly-bound to each other, e.g. azoformamide
Patent holdings for IPC class C07C 281/20
Total number of patents in this class: 21
10-year publication summary
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2
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0
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0
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1
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1
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1
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0
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1
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3
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ligand Pharmaceuticals Incorporated | 169 |
5 |
| Michelin Recherche et Technique S.A. | 2141 |
2 |
| Compagnie Generale des Etablissements Michelin | 4798 |
2 |
| F. Hoffmann-La Roche AG | 7937 |
1 |
| Roche Diagnostics GmbH | 2698 |
1 |
| Arkema France | 4176 |
1 |
| Dongjin Semichem Co., Ltd. | 487 |
1 |
| Hyogo Prefecture | 23 |
1 |
| Jitsubo Co., Ltd. | 14 |
1 |
| National University Corporation Tokyo University of Agriculture and Technology | 342 |
1 |
| Solvay SA | 970 |
1 |
| Sun Chemical B.V. | 369 |
1 |
| Toyo Kasei Kogyo Company Limited | 6 |
1 |
| I&c Chemtech Co., Ltd. | 1 |
1 |
| Know bio, LLC | 79 |
1 |
| Other owners | 0 |