- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 263/20 - Separation; Purification
Patent holdings for IPC class C07C 263/20
Total number of patents in this class: 182
10-year publication summary
|
10
|
9
|
7
|
13
|
7
|
19
|
25
|
14
|
9
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2429 |
44 |
| BASF SE | 19740 |
16 |
| Mitsui Chemicals, Inc. | 3134 |
12 |
| Covestro Intellectual Property GmbH & Co. KG | 501 |
11 |
| SK Pucore Co., Ltd. | 37 |
11 |
| Woori Fine Chem Co., Ltd. | 14 |
10 |
| Hanwha Solutions Corporation | 572 |
9 |
| Huntsman International LLC | 708 |
8 |
| Dow Global Technologies LLC | 10147 |
7 |
| Asahi Kasei Chemicals Corporation | 809 |
6 |
| Modernatx, Inc. | 1181 |
4 |
| Warsaw Orthopedic, Inc. | 3184 |
3 |
| Showa Denko K.K. | 2539 |
3 |
| Asahi Kasei Kabushiki Kaisha | 2429 |
3 |
| Hanwha Chemical Corporation | 325 |
3 |
| Resonac Corporation | 2233 |
3 |
| Bayer MaterialScience AG | 874 |
2 |
| BASF AG | 1258 |
2 |
| Nippon Polyurethane Industry Co., Ltd. | 105 |
2 |
| Rathor AG | 6 |
2 |
| Other owners | 21 |