- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 11/00 - Obtaining noble metals
Patent holdings for IPC class C22B 11/00
Total number of patents in this class: 973
10-year publication summary
|
38
|
25
|
29
|
40
|
39
|
55
|
85
|
100
|
78
|
90
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1479 |
47 |
| Barrick Gold Corporation | 51 |
27 |
| Johnson Matthey Public Limited Company | 1771 |
27 |
| Heraeus Deutschland GmbH & Co. KG | 408 |
16 |
| Beijing University of Technology | 505 |
15 |
| Excir Works Corp. | 35 |
13 |
| Glencore Technology Pty Ltd | 52 |
12 |
| Robert Bosch GmbH | 43063 |
11 |
| Outotec (Finland) Oy | 461 |
10 |
| Tanaka Kikinzoku Kogyo K.K. | 570 |
10 |
| Newcrest Mining Limited | 38 |
9 |
| Northwestern University | 3452 |
8 |
| Sumitomo Metal Mining Co., Ltd. | 1796 |
8 |
| Anglo American Technical & Sustainability Services Ltd | 65 |
8 |
| BASF SE | 21087 |
7 |
| Daicel Corporation | 2408 |
7 |
| Kyushu University, National University Corporation | 1667 |
7 |
| Galdieria Co., Ltd. | 9 |
7 |
| Mining and Process Solutions Pty Ltd | 11 |
7 |
| Locus Solutions IPCo, LLC | 335 |
7 |
| Other owners | 710 |