- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 21/093 - Compounds containing nitrogen and non-metals containing one or more hydrogen atoms containing also one or more sulfur atoms
Patent holdings for IPC class C01B 21/093
Total number of patents in this class: 164
10-year publication summary
|
4
|
4
|
10
|
12
|
9
|
11
|
13
|
19
|
10
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Specialty Operations France | 887 |
41 |
| Arkema France | 4169 |
25 |
| Nippon Soda Co., Ltd. | 887 |
15 |
| Rhodia Operations | 1540 |
9 |
| Nippon Shokubai Co., Ltd. | 1518 |
8 |
| Honeywell International Inc. | 13564 |
6 |
| Solvay SA | 967 |
5 |
| Mitsubishi Materials Corporation | 2466 |
4 |
| Mitsubishi Materials Electronic Chemicals Co., Ltd. | 135 |
4 |
| Chun Bo.,ltd | 15 |
3 |
| Central Glass Company, Limited | 1282 |
2 |
| CoorsTek Fluorochemicals, Inc. | 8 |
2 |
| SES Holdings Pte. Ltd | 66 |
2 |
| CHUNBO Co.,LTD | 8 |
2 |
| Daegu Catholic University Industry Academic Cooperation Foundation | 23 |
2 |
| EP Chemtech Co., Ltd. | 11 |
2 |
| Guangzhou Lee & Man Technology Company Limited | 4 |
2 |
| Morimatsu (Jiangsu) Heavy Industry Co., Ltd. | 10 |
2 |
| Shanghai Morimatsu Engineering Technology Co., Ltd | 5 |
2 |
| Syensqo SA | 121 |
2 |
| Other owners | 24 |