- 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
|
11
|
3
|
5
|
4
|
1
|
4
|
3
|
4
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ube Industries, Ltd. | 849 |
10 |
| Sumitomo Chemical Company, Limited | 9047 |
7 |
| Cap III B.V. | 58 |
7 |
| Daicel Chemical Industries, Ltd. | 227 |
5 |
| DSM IP Assets B.V. | 5590 |
3 |
| Toray Industries, Inc. | 6945 |
3 |
| China Petrochemical Development Corporation | 25 |
3 |
| Evonik Operations GmbH | 4110 |
3 |
| Hanwha Solutions Corporation | 834 |
3 |
| Ube Corporation | 354 |
3 |
| Evonik Degussa GmbH | 1527 |
2 |
| Advansix Resins & Chemicals LLC | 299 |
2 |
| National University Corporation Nagoya University | 856 |
2 |
| University of Southampton | 442 |
2 |
| Anthea Aromatics Private Limited | 11 |
2 |
| China Tianchen Engineering Corporation | 11 |
2 |
| Honeywell International Inc. | 13553 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4941 |
1 |
| Arkema France | 4154 |
1 |
| Hanwha Chemical Corporation | 320 |
1 |
| Other owners | 14 |