- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 201/04 - Preparation of lactams from or via oximes by Beckmann rearrangement
Patent holdings for IPC class C07D 201/04
Total number of patents in this class: 77
10-year publication summary
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3
|
5
|
4
|
1
|
4
|
3
|
4
|
2
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ube Industries, Ltd. | 767 |
10 |
| Sumitomo Chemical Company, Limited | 8968 |
7 |
| Cap III B.V. | 56 |
6 |
| Daicel Chemical Industries, Ltd. | 178 |
4 |
| DSM IP Assets B.V. | 5389 |
3 |
| Toray Industries, Inc. | 7139 |
3 |
| China Petrochemical Development Corporation | 22 |
3 |
| Evonik Operations GmbH | 4384 |
3 |
| Hanwha Solutions Corporation | 1191 |
3 |
| Ube Corporation | 455 |
3 |
| Advansix Resins & Chemicals LLC | 307 |
2 |
| National University Corporation Nagoya University | 780 |
2 |
| University of Southampton | 463 |
2 |
| Anthea Aromatics Private Limited | 11 |
2 |
| China Tianchen Engineering Corporation | 26 |
2 |
| BASF SE | 21306 |
1 |
| Honeywell International Inc. | 12776 |
1 |
| Evonik Degussa GmbH | 1351 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5269 |
1 |
| Arkema France | 4251 |
1 |
| Other owners | 17 |