- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 64/02 - Aliphatic polycarbonates
Patent holdings for IPC class C08G 64/02
Total number of patents in this class: 802
10-year publication summary
|
50
|
65
|
59
|
72
|
49
|
56
|
30
|
38
|
29
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical Corporation | 4726 |
67 |
| Mitsubishi Gas Chemical Company, Inc. | 3631 |
40 |
| Teijin Limited | 1287 |
37 |
| Saudi Aramco Technologies Company | 113 |
34 |
| Sumitomo Seika Chemicals Co., Ltd. | 1042 |
28 |
| LG Chem, Ltd. | 17937 |
27 |
| BASF SE | 21318 |
26 |
| International Business Machines Corporation | 62672 |
26 |
| Covestro Deutschland AG | 2841 |
23 |
| Asahi Kasei Kabushiki Kaisha | 2838 |
17 |
| SK Innovation Co., Ltd. | 1486 |
17 |
| Dow Global Technologies LLC | 10968 |
13 |
| Agency for Science, Technology and Research | 3744 |
12 |
| Lotte Chemical Corporation | 787 |
12 |
| Econic Technologies Ltd | 53 |
12 |
| Mitsubishi Rayon Co., Ltd. | 853 |
10 |
| Novomer, Inc. | 141 |
10 |
| National University Corporation Tokyo University of Agriculture and Technology | 341 |
9 |
| Roquette Freres | 1056 |
9 |
| The Board of Trustees of the Leland Stanford Junior University | 6668 |
7 |
| Other owners | 366 |