- All sections
- C - Chemistry; metallurgy
- 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: 1190
10-year publication summary
|
74
|
89
|
98
|
119
|
129
|
152
|
132
|
118
|
82
|
24
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2429 |
103 |
| DIC Corporation | 3597 |
42 |
| BASF SE | 19740 |
41 |
| Bayer MaterialScience AG | 874 |
36 |
| Mitsubishi Chemical Corporation | 4313 |
28 |
| Dow Global Technologies LLC | 10147 |
27 |
| PPG Industries Ohio, Inc. | 3430 |
26 |
| Saudi Aramco Technologies Company | 107 |
24 |
| Lubrizol Advanced Materials, Inc. | 949 |
21 |
| Covestro Intellectual Property GmbH & Co. KG | 501 |
21 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
20 |
| Ube Industries, Ltd. | 921 |
20 |
| 3m Innovative Properties Company | 18406 |
19 |
| Covestro LLC | 577 |
18 |
| Bayer Intellectual Property GmbH | 2671 |
17 |
| Mitsui Chemicals, Inc. | 3134 |
14 |
| Axalta Coating Systems IP Co., LLC | 454 |
14 |
| Acushnet Company | 2337 |
12 |
| Rohm and Haas Company | 2805 |
12 |
| Showa Denko K.K. | 2539 |
11 |
| Other owners | 664 |