- All sections
- C - Chemistry; metallurgy
- 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: 632
10-year publication summary
47
|
60
|
48
|
37
|
43
|
49
|
44
|
46
|
45
|
17
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Chem, Ltd. | 17205 |
62 |
Mitsubishi Gas Chemical Company, Inc. | 3188 |
51 |
SABIC Global Technologies B.V. | 4044 |
51 |
Mitsubishi Chemical Corporation | 4313 |
50 |
Covestro Deutschland AG | 2429 |
33 |
Sabic Innovative Plastics IP B.V. | 683 |
23 |
International Business Machines Corporation | 60644 |
15 |
Teijin Limited | 1216 |
15 |
Asahi Kasei Chemicals Corporation | 809 |
14 |
General Electric Company | 18133 |
10 |
Mitsubishi Rayon Co., Ltd. | 1003 |
10 |
Roquette Freres | 1002 |
10 |
Shell Internationale Research Maatschappij B.V. | 3792 |
9 |
Shell Oil Company | 2196 |
9 |
Brightgene Bio-Medical Technology Co., Ltd. | 61 |
9 |
Lotte Advanced Materials Co., Ltd. | 434 |
9 |
Covestro Intellectual Property GmbH & Co. KG | 501 |
9 |
Agency for Science, Technology and Research | 3512 |
8 |
Asahi Kasei Kabushiki Kaisha | 2429 |
8 |
Centre National de La Recherche Scientifique | 9632 |
7 |
Other owners | 220 |