- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 18/44 - Polycarbonates
Patent holdings for IPC class C08G 18/44
Total number of patents in this class: 1324
10-year publication summary
|
99
|
119
|
129
|
152
|
132
|
120
|
98
|
85
|
70
|
46
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2844 |
104 |
| DIC Corporation | 3974 |
48 |
| BASF SE | 21306 |
44 |
| Mitsubishi Chemical Corporation | 4734 |
41 |
| Bayer MaterialScience AG | 704 |
30 |
| Asahi Kasei Kabushiki Kaisha | 2840 |
27 |
| Saudi Aramco Technologies Company | 113 |
25 |
| Dow Global Technologies LLC | 10994 |
23 |
| Lubrizol Advanced Materials, Inc. | 957 |
22 |
| Tosoh Corporation | 1417 |
20 |
| 3m Innovative Properties Company | 17458 |
19 |
| Ube Industries, Ltd. | 767 |
19 |
| Bayer Intellectual Property GmbH | 2357 |
17 |
| Covestro LLC | 612 |
17 |
| Covestro Intellectual Property GmbH & Co. KG | 276 |
17 |
| Axalta Coating Systems IP Co., LLC | 476 |
16 |
| Acushnet Company | 2723 |
15 |
| Mitsui Chemicals, Inc. | 3259 |
15 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 379 |
14 |
| Econic Technologies Ltd | 53 |
14 |
| Other owners | 777 |