- 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: 464
10-year publication summary
|
24
|
28
|
21
|
27
|
27
|
39
|
28
|
32
|
38
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Covestro Deutschland AG | 2795 |
111 |
| BASF SE | 21111 |
82 |
| Mitsui Chemicals, Inc. | 3235 |
31 |
| Wanhua Chemical Group Co., Ltd. | 363 |
30 |
| Hanwha Solutions Corporation | 959 |
19 |
| Dow Global Technologies LLC | 10664 |
17 |
| Bayer MaterialScience AG | 761 |
14 |
| Huntsman International LLC | 702 |
10 |
| Wanhua Chemical (Ningbo) Co., Ltd. | 81 |
8 |
| Showa Denko K.K. | 2146 |
7 |
| Nippon Polyurethane Industry Co., Ltd. | 84 |
7 |
| Woori Fine Chem Co., Ltd. | 14 |
7 |
| Sumitomo Chemical Company, Limited | 9040 |
6 |
| Genomatica, Inc. | 477 |
6 |
| National University Corporation Kobe University | 538 |
6 |
| Covestro Intellectual Property GmbH & Co. KG | 277 |
6 |
| Covestro LLC | 595 |
5 |
| KS Laboratories Co., Ltd. | 19 |
5 |
| SK Pucore Co., Ltd. | 39 |
5 |
| FUJIFILM Corporation | 29992 |
4 |
| Other owners | 78 |