- All sections
- C - Chemistrymetallurgy
- C08F - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C08F 232/08 - Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system having condensed rings
Patent holdings for IPC class C08F 232/08
Total number of patents in this class: 318
10-year publication summary
25
|
14
|
22
|
16
|
17
|
28
|
21
|
18
|
27
|
19
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Promerus, LLC | 142 |
28 |
Sumitomo Bakelite Co., Ltd. | 1498 |
28 |
Zeon Corporation | 4079 |
20 |
Mitsui Chemicals, Inc. | 3222 |
19 |
ExxonMobil Chemical Patents Inc. | 3977 |
14 |
Polyplastics Co., Ltd. | 603 |
11 |
LG Chem, Ltd. | 17635 |
10 |
Kolon Industries, Inc. | 1688 |
9 |
FUJIFILM Corporation | 29437 |
8 |
Shin-Etsu Chemical Co., Ltd. | 5669 |
8 |
Maruzen Petrochemical Co., Ltd. | 181 |
8 |
Sumitomo Chemical Company, Limited | 9043 |
6 |
JSR Corporation | 2527 |
5 |
Massachusetts Institute of Technology | 10062 |
4 |
DONGWOO FINE-CHEM Co., Ltd. | 1344 |
4 |
Topas Advanced Polymers GmbH | 28 |
4 |
Hanwha Solutions Corporation | 841 |
4 |
Rain Carbon Germany GmbH | 55 |
4 |
California Institute of Technology | 3977 |
3 |
The Goodyear Tire & Rubber Company | 2499 |
3 |
Other owners | 118 |