- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 64/30 - General preparatory processes using carbonates
Patent holdings for IPC class C08G 64/30
Total number of patents in this class: 699
10-year publication summary
|
48
|
37
|
43
|
49
|
46
|
51
|
45
|
52
|
50
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17883 |
74 |
| Mitsubishi Chemical Corporation | 4665 |
63 |
| Mitsubishi Gas Chemical Company, Inc. | 3599 |
63 |
| SABIC Global Technologies B.V. | 4512 |
61 |
| Covestro Deutschland AG | 2808 |
40 |
| Sabic Innovative Plastics IP B.V. | 648 |
22 |
| Teijin Limited | 1274 |
19 |
| International Business Machines Corporation | 62325 |
15 |
| Asahi Kasei Kabushiki Kaisha | 2806 |
11 |
| Mitsubishi Rayon Co., Ltd. | 861 |
10 |
| Roquette Freres | 1049 |
10 |
| Shell Internationale Research Maatschappij B.V. | 3437 |
9 |
| Agency for Science, Technology and Research | 3697 |
9 |
| Brightgene Bio-Medical Technology Co., Ltd. | 69 |
9 |
| Lotte Advanced Materials Co., Ltd. | 399 |
9 |
| Samyang Corporation | 416 |
8 |
| BASF SE | 21165 |
7 |
| Shell Oil Company | 2083 |
7 |
| Centre National de La Recherche Scientifique (cnrs) | 3042 |
7 |
| Covestro Intellectual Property GmbH & Co. KG | 276 |
7 |
| Other owners | 239 |