- All sections
- C - Chemistrymetallurgy
- 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: 456
10-year publication summary
|
19
|
24
|
28
|
21
|
27
|
27
|
39
|
27
|
32
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2772 |
109 |
| BASF SE | 21017 |
81 |
| Mitsui Chemicals, Inc. | 3247 |
29 |
| Wanhua Chemical Group Co., Ltd. | 354 |
28 |
| Hanwha Solutions Corporation | 885 |
18 |
| Dow Global Technologies LLC | 10437 |
17 |
| Bayer MaterialScience AG | 784 |
14 |
| Huntsman International LLC | 722 |
11 |
| Wanhua Chemical (Ningbo) Co., Ltd. | 81 |
8 |
| Showa Denko K.K. | 2196 |
7 |
| Nippon Polyurethane Industry Co., Ltd. | 88 |
7 |
| Woori Fine Chem Co., Ltd. | 14 |
7 |
| Sumitomo Chemical Company, Limited | 9079 |
6 |
| Genomatica, Inc. | 496 |
6 |
| National University Corporation Kobe University | 530 |
6 |
| Covestro Intellectual Property GmbH & Co. KG | 276 |
6 |
| Covestro LLC | 586 |
5 |
| KS Laboratories Co., Ltd. | 19 |
5 |
| SK Pucore Co., Ltd. | 39 |
5 |
| FUJIFILM Corporation | 29696 |
4 |
| Other owners | 77 |