- 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: 1019
10-year publication summary
|
31
|
39
|
47
|
49
|
61
|
99
|
109
|
83
|
106
|
47
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1461 |
47 |
| Johnson Matthey Public Limited Company | 1767 |
31 |
| Barrick Gold Corporation | 27 |
19 |
| Heraeus Deutschland GmbH & Co. KG | 403 |
16 |
| Beijing University of Technology | 519 |
15 |
| Excir Works Corp. | 31 |
12 |
| Robert Bosch GmbH | 44128 |
11 |
| Glencore Technology Pty Ltd | 54 |
11 |
| Outotec (Finland) Oy | 455 |
10 |
| Tanaka Kikinzoku Kogyo K.K. | 574 |
10 |
| Galdieria Co., Ltd. | 11 |
9 |
| Newcrest Mining Limited | 38 |
9 |
| Anglo American Technical & Sustainability Services Ltd | 70 |
9 |
| Barrick Mining Corporation | 46 |
9 |
| Northwestern University | 3540 |
7 |
| Daicel Corporation | 2508 |
7 |
| Sumitomo Metal Mining Co., Ltd. | 1971 |
7 |
| Mining and Process Solutions Pty Ltd | 13 |
7 |
| Locus Solutions IPCo, LLC | 339 |
7 |
| Metso Finland Oy | 688 |
7 |
| Other owners | 759 |