- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 3/02 - Apparatus therefor
Patent holdings for IPC class C22B 3/02
Total number of patents in this class: 631
10-year publication summary
|
29
|
39
|
27
|
44
|
44
|
28
|
22
|
48
|
62
|
79
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Outotec (Finland) Oy | 480 |
36 |
| Metso Finland Oy | 452 |
23 |
| Freeport Minerals Corporation | 107 |
21 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1243 |
21 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1212 |
21 |
| Gem Co., Ltd. | 216 |
18 |
| PT Qmb New Energy Materials | 146 |
18 |
| PT Gem Indonesia New Energy Materials | 144 |
18 |
| FLSmidth A/S | 772 |
14 |
| China ENFI Engineering Corp. | 103 |
12 |
| CPS Technology Holdings LLC | 725 |
11 |
| PT ESG New Energy Material | 51 |
11 |
| Hatch Ltd. | 214 |
10 |
| BASF SE | 20933 |
9 |
| Differential Engineering Inc. | 13 |
8 |
| Technological Resources Pty. Limited | 453 |
8 |
| Metso Outotec Finland Oy | 361 |
8 |
| Primobius GmbH | 14 |
8 |
| Outotec Oyj | 278 |
7 |
| Sumitomo Metal Mining Co., Ltd. | 1779 |
7 |
| Other owners | 342 |