- 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: 1297
10-year publication summary
|
90
|
114
|
123
|
147
|
126
|
119
|
90
|
82
|
68
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2796 |
103 |
| DIC Corporation | 3896 |
48 |
| BASF SE | 21131 |
44 |
| Mitsubishi Chemical Corporation | 4684 |
38 |
| Bayer MaterialScience AG | 755 |
32 |
| Asahi Kasei Kabushiki Kaisha | 2750 |
26 |
| Saudi Aramco Technologies Company | 110 |
25 |
| Dow Global Technologies LLC | 10740 |
23 |
| Lubrizol Advanced Materials, Inc. | 949 |
21 |
| Ube Industries, Ltd. | 799 |
19 |
| 3m Innovative Properties Company | 17589 |
18 |
| Tosoh Corporation | 1360 |
18 |
| Bayer Intellectual Property GmbH | 2437 |
17 |
| Covestro LLC | 595 |
17 |
| Covestro Intellectual Property GmbH & Co. KG | 277 |
17 |
| Mitsui Chemicals, Inc. | 3224 |
16 |
| Axalta Coating Systems IP Co., LLC | 469 |
16 |
| Acushnet Company | 2618 |
15 |
| Econic Technologies Ltd | 52 |
14 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 370 |
12 |
| Other owners | 758 |