- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 317/38 - Ethylene carbonate
Patent holdings for IPC class C07D 317/38
Total number of patents in this class: 223
10-year publication summary
|
8
|
8
|
10
|
23
|
13
|
18
|
16
|
13
|
12
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shell Internationale Research Maatschappij B.V. | 3724 |
20 |
| BASF SE | 20421 |
12 |
| National Institute of Advanced Industrial Science and Technology | 3738 |
10 |
| Shell USA, Inc. | 1137 |
9 |
| Shell Oil Company | 2153 |
8 |
| Asahi Kasei Kabushiki Kaisha | 2563 |
7 |
| Maruzen Petrochemical Co., Ltd. | 176 |
7 |
| Daikin Industries, Ltd. | 9851 |
6 |
| The Johns Hopkins University | 5535 |
6 |
| China Petroleum & Chemical Corporation | 1786 |
6 |
| Sika Technology AG | 2861 |
6 |
| LG Chem, Ltd. | 17643 |
5 |
| Centre National de La Recherche Scientifique | 10124 |
5 |
| Mitsubishi Chemical Corporation | 4453 |
5 |
| National University Corporation Kobe University | 499 |
5 |
| Shanghai Research Institute of Petrochemical Technology Sinopec | 266 |
5 |
| Shenzhen Capchem Technology Co., Ltd. | 272 |
5 |
| Institute of Process Engineering, Chinese Academy of Sciences | 280 |
4 |
| Mitsubishi Gas Chemical Company, Inc. | 3349 |
4 |
| Ústav organické chemie a biochemie AV {hacek over (C)}R, v.v.i. | 6 |
4 |
| Other owners | 84 |