- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 11/00 - Obtaining noble metals
Patent holdings for IPC class C22B 11/00
Total number of patents in this class: 861
10-year publication summary
66
|
59
|
31
|
39
|
45
|
46
|
56
|
97
|
105
|
21
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JX Nippon Mining & Metals Corporation | 1576 |
47 |
Barrick Gold Corporation | 73 |
28 |
Beijing University of Technology | 437 |
15 |
Heraeus Deutschland GmbH & Co. KG | 643 |
15 |
Johnson Matthey Public Limited Company | 1852 |
14 |
Glencore Technology Pty Ltd | 46 |
12 |
Robert Bosch GmbH | 40953 |
11 |
Outotec (Finland) Oy | 491 |
11 |
Tanaka Kikinzoku Kogyo K.K. | 589 |
11 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
10 |
Metso Outotec Finland Oy | 795 |
10 |
Newcrest Mining Limited | 38 |
9 |
Outotec Oyj | 318 |
7 |
Excir Works Corp. | 28 |
7 |
Anglo American Technical & Sustainability Services Ltd | 52 |
7 |
Mining and Process Solutions Pty Ltd | 11 |
7 |
Ecolab USA Inc. | 5190 |
6 |
Galdieria Co., Ltd. | 8 |
6 |
Barrick Gold Corporation | 7 |
6 |
BASF SE | 19740 |
5 |
Other owners | 617 |