- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 11/08 - Obtaining noble metals by cyaniding
Patent holdings for IPC class C22B 11/08
Total number of patents in this class: 126
10-year publication summary
|
12
|
12
|
6
|
4
|
9
|
8
|
20
|
10
|
4
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecolab USA Inc. | 5601 |
7 |
| Robert Bosch GmbH | 43096 |
6 |
| Newcrest Mining Limited | 38 |
6 |
| Corem | 5 |
5 |
| S.A. Lhoist Recherche et Developpement | 188 |
4 |
| BASF SE | 21098 |
3 |
| Blucher GmbH | 179 |
3 |
| Commonwealth Scientific and Industrial Research Organisation | 1661 |
3 |
| Ethox Chemicals, LLC | 94 |
3 |
| National University of Singapore | 2514 |
3 |
| Cryoinfra S.A. de C.V. | 3 |
3 |
| Dow Global Technologies LLC | 10571 |
2 |
| Chevron U.S.A. Inc. | 4020 |
2 |
| Barrick Gold Corporation | 51 |
2 |
| Cesl Limited | 6 |
2 |
| Cyanco Corporation | 8 |
2 |
| Freeport Minerals Corporation | 117 |
2 |
| Gekko Systems Pty Ltd | 36 |
2 |
| National Research Council of Canada | 1559 |
2 |
| Sherritt International Corporation | 30 |
2 |
| Other owners | 62 |