- All sections
- C - Chemistry; metallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
Patent holdings for IPC class C08G 64/34
Total number of patents in this class: 463
10-year publication summary
|
51
|
36
|
38
|
42
|
37
|
37
|
28
|
27
|
18
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2685 |
71 |
| LG Chem, Ltd. | 17632 |
50 |
| Saudi Aramco Technologies Company | 109 |
43 |
| Econic Technologies Ltd | 44 |
33 |
| SK Innovation Co., Ltd. | 1199 |
27 |
| King Abdullah University of Science and Technology | 1740 |
15 |
| Bayer Intellectual Property GmbH | 2572 |
11 |
| Sumitomo Seika Chemicals Co., Ltd. | 1034 |
11 |
| Covestro Intellectual Property GmbH & Co. KG | 276 |
11 |
| Novomer, Inc. | 209 |
9 |
| Repsol, S.A. | 438 |
9 |
| SK Global Chemical Co., Ltd. | 80 |
9 |
| BASF SE | 20387 |
8 |
| ENI S.p.A. | 1251 |
8 |
| Dow Global Technologies LLC | 10143 |
7 |
| SK Geo Centric Co., Ltd. | 288 |
7 |
| Bayer MaterialScience AG | 840 |
6 |
| National University Corporation Tokyo University of Agriculture and Technology | 338 |
6 |
| The University of Tokyo | 4053 |
5 |
| Zhejiang University | 2936 |
5 |
| Other owners | 112 |