- All sections
- C - Chemistry; metallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
Patent holdings for IPC class C07C 263/10
Total number of patents in this class: 422
10-year publication summary
|
23
|
19
|
25
|
28
|
21
|
27
|
27
|
40
|
28
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2429 |
101 |
| BASF SE | 19740 |
77 |
| Mitsui Chemicals, Inc. | 3134 |
28 |
| Dow Global Technologies LLC | 10147 |
17 |
| Bayer MaterialScience AG | 874 |
14 |
| Wanhua Chemical Group Co., Ltd. | 286 |
13 |
| Hanwha Solutions Corporation | 572 |
13 |
| Huntsman International LLC | 708 |
12 |
| BASF AG | 1258 |
10 |
| Covestro Intellectual Property GmbH & Co. KG | 501 |
10 |
| Showa Denko K.K. | 2539 |
8 |
| Nippon Polyurethane Industry Co., Ltd. | 105 |
8 |
| Wanhua Chemical (Ningbo) Co., Ltd. | 76 |
7 |
| Woori Fine Chem Co., Ltd. | 14 |
7 |
| Sumitomo Chemical Company, Limited | 8808 |
6 |
| Resonac Corporation | 2233 |
5 |
| SK Pucore Co., Ltd. | 37 |
5 |
| FUJIFILM Corporation | 27102 |
4 |
| Warsaw Orthopedic, Inc. | 3184 |
4 |
| Covestro LLC | 577 |
4 |
| Other owners | 69 |