- All sections
- C - Chemistrymetallurgy
- C01C - Ammoniacyanogencompounds thereof
- C01C 3/02 - Preparation of hydrogen cyanide
Patent holdings for IPC class C01C 3/02
Total number of patents in this class: 126
10-year publication summary
|
11
|
8
|
3
|
7
|
7
|
3
|
2
|
6
|
7
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| INVISTA Technologies S.a.r.l. | 387 |
23 |
| BASF SE | 21334 |
10 |
| Evonik Operations GmbH | 4443 |
10 |
| INVISTA North America S.a.r.l. | 176 |
7 |
| Evonik Degussa GmbH | 1343 |
6 |
| Haldor Topsøe A/S | 629 |
6 |
| Topsoe A/S | 1080 |
6 |
| Arkema France | 4232 |
5 |
| Aurotec GmbH | 45 |
4 |
| Evonik Röhm GmbH | 380 |
3 |
| Rohm and Haas Company | 2942 |
3 |
| Mitsubishi Chemical Corporation | 4767 |
3 |
| Synergen Met Limited | 3 |
3 |
| Commonwealth Scientific and Industrial Research Organisation | 1651 |
2 |
| Heraeus Deutschland GmbH & Co. KG | 398 |
2 |
| Heraeus Precious Metals GmbH & Co. KG | 104 |
2 |
| Rohm GmbH | 261 |
2 |
| Trinseo Europe GmbH | 324 |
2 |
| INVISTA Textiles (U.K.) Limited | 272 |
2 |
| INV Nylon Chemicals Americas, LLC | 203 |
2 |
| Other owners | 23 |