- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 67/20 - Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group from amides or lactams
Patent holdings for IPC class C07C 67/20
Total number of patents in this class: 71
10-year publication summary
|
6
|
5
|
1
|
4
|
0
|
4
|
4
|
1
|
2
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evonik Röhm GmbH | 388 |
12 |
| Rohm GmbH | 262 |
9 |
| Rohm and Haas Company | 2951 |
8 |
| Trinseo Europe GmbH | 324 |
7 |
| Roehm GmbH | 75 |
4 |
| Arkema France | 4242 |
3 |
| Asymchem Laboratories (Tianjin) Co., Ltd | 109 |
2 |
| Lucite International UK Limited | 44 |
2 |
| Osaka University | 3267 |
2 |
| Takasago International Corporation | 405 |
2 |
| Ube Industries, Ltd. | 770 |
2 |
| Yamaguchi University | 327 |
2 |
| Buckman Laboratories International, Inc. | 240 |
1 |
| Finorga | 7 |
1 |
| Futerro S.A. | 57 |
1 |
| Mitsubishi Gas Chemical Company, Inc. | 3622 |
1 |
| Rhodia Operations | 1494 |
1 |
| Teikyo University | 121 |
1 |
| UChicago Argonne, LLC | 946 |
1 |
| Universiteit Antwerpen | 411 |
1 |
| Other owners | 8 |