- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
Patent holdings for IPC class C08G 64/06
Total number of patents in this class: 379
10-year publication summary
|
29
|
30
|
27
|
30
|
30
|
33
|
29
|
32
|
33
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3461 |
71 |
| Idemitsu Kosan Co., Ltd. | 4220 |
40 |
| Mitsubishi Chemical Corporation | 4498 |
33 |
| LG Chem, Ltd. | 17620 |
31 |
| Covestro Deutschland AG | 2747 |
23 |
| Teijin Limited | 1242 |
21 |
| SABIC Global Technologies B.V. | 4335 |
17 |
| SHPP Global Technologies B.V. | 1082 |
17 |
| Honshu Chemical Industry Co., Ltd. | 165 |
11 |
| Reuter Chemische Apparatebau KG | 16 |
8 |
| Lotte Advanced Materials Co., Ltd. | 405 |
7 |
| The United States of America as represented by the Secretary of the Navy | 2744 |
6 |
| MGC Filsheet Co., Ltd. | 156 |
5 |
| Mitsubishi Engineering-Plastics Corporation | 309 |
5 |
| Canon Inc. | 39818 |
4 |
| Sabic Innovative Plastics IP B.V. | 681 |
4 |
| Mitsubishi Rayon Co., Ltd. | 911 |
4 |
| Covestro Intellectual Property GmbH & Co. KG | 276 |
4 |
| General Electric Company | 13767 |
3 |
| FUJIFILM Corporation | 29350 |
3 |
| Other owners | 62 |