- 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
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17950 |
76 |
| Mitsubishi Gas Chemical Company, Inc. | 3634 |
64 |
| SABIC Global Technologies B.V. | 4611 |
61 |
| Mitsubishi Chemical Corporation | 4734 |
60 |
| Covestro Deutschland AG | 2844 |
40 |
| Sabic Innovative Plastics IP B.V. | 584 |
19 |
| Teijin Limited | 1290 |
19 |
| International Business Machines Corporation | 62748 |
15 |
| Asahi Kasei Kabushiki Kaisha | 2840 |
11 |
| Roquette Freres | 1058 |
10 |
| Shell Internationale Research Maatschappij B.V. | 3394 |
9 |
| Mitsubishi Rayon Co., Ltd. | 851 |
9 |
| Agency for Science, Technology and Research | 3749 |
9 |
| Brightgene Bio-Medical Technology Co., Ltd. | 73 |
9 |
| Samyang Corporation | 427 |
9 |
| Lotte Advanced Materials Co., Ltd. | 398 |
9 |
| Shell Oil Company | 2068 |
7 |
| Centre National de La Recherche Scientifique (cnrs) | 3013 |
7 |
| Covestro Intellectual Property GmbH & Co. KG | 276 |
7 |
| BASF SE | 21306 |
6 |
| Other owners | 243 |