- 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: 76
10-year publication summary
|
11
|
6
|
5
|
1
|
4
|
0
|
4
|
4
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Evonik Röhm GmbH | 430 |
14 |
| Rohm GmbH | 264 |
9 |
| Rohm and Haas Company | 2934 |
8 |
| Trinseo Europe GmbH | 315 |
7 |
| Roehm GmbH | 77 |
4 |
| Arkema France | 4173 |
3 |
| Ube Industries, Ltd. | 821 |
3 |
| Yamaguchi University | 316 |
3 |
| Asymchem Laboratories (Tianjin) Co., Ltd | 93 |
2 |
| Lucite International UK Limited | 47 |
2 |
| Osaka University | 3382 |
2 |
| Rhodia Operations | 1553 |
2 |
| Takasago International Corporation | 403 |
2 |
| Buckman Laboratories International, Inc. | 242 |
1 |
| Finorga | 7 |
1 |
| Futerro S.A. | 56 |
1 |
| Mitsubishi Gas Chemical Company, Inc. | 3499 |
1 |
| Teikyo University | 113 |
1 |
| UChicago Argonne, LLC | 930 |
1 |
| Universiteit Antwerpen | 391 |
1 |
| Other owners | 8 |