- All sections
- C - Chemistry; metallurgy
- C08L - Compositions of macromolecular compounds
- C08L 71/02 - Polyalkylene oxides
Patent holdings for IPC class C08L 71/02
Total number of patents in this class: 2594
10-year publication summary
|
142
|
200
|
197
|
223
|
227
|
210
|
237
|
203
|
172
|
61
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kaneka Corporation | 4445 |
128 |
| Dow Global Technologies LLC | 10147 |
68 |
| BASF SE | 19740 |
36 |
| Daikin Industries, Ltd. | 9495 |
34 |
| Rohm and Haas Company | 2805 |
33 |
| Idemitsu Kosan Co., Ltd. | 3995 |
31 |
| Sumitomo Seika Chemicals Co., Ltd. | 1028 |
30 |
| LG Chem, Ltd. | 17205 |
29 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
28 |
| Wacker Chemie AG | 2091 |
25 |
| Agc, Inc. | 4029 |
25 |
| 3m Innovative Properties Company | 18406 |
22 |
| Zeon Corporation | 3854 |
21 |
| The University of Tokyo | 3903 |
20 |
| Asahi Glass Company, Limited | 2985 |
19 |
| Henkel AG & Co. KGaA | 10129 |
19 |
| Nippon Shokubai Co., Ltd. | 1487 |
19 |
| Polyplastics Co., Ltd. | 563 |
18 |
| Sika Technology AG | 2650 |
18 |
| Solvay Specialty Polymers Italy S.p.A. | 704 |
18 |
| Other owners | 1953 |