- 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: 635
10-year publication summary
|
25
|
34
|
22
|
35
|
38
|
23
|
18
|
37
|
59
|
78
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Outotec (Finland) Oy | 477 |
36 |
| Metso Finland Oy | 464 |
23 |
| Freeport Minerals Corporation | 110 |
22 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1244 |
21 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1213 |
21 |
| Gem Co., Ltd. | 216 |
18 |
| PT Gem Indonesia New Energy Materials | 144 |
18 |
| PT Qmb New Energy Materials | 145 |
17 |
| FLSmidth A/S | 774 |
14 |
| China ENFI Engineering Corp. | 103 |
12 |
| CPS Technology Holdings LLC | 730 |
11 |
| Hatch Ltd. | 216 |
10 |
| PT ESG New Energy Material | 50 |
10 |
| BASF SE | 20991 |
9 |
| Differential Engineering Inc. | 13 |
8 |
| Technological Resources Pty. Limited | 458 |
8 |
| Primobius GmbH | 15 |
8 |
| Outotec Oyj | 278 |
7 |
| Sumitomo Metal Mining Co., Ltd. | 1791 |
7 |
| Metso Outotec Finland Oy | 348 |
7 |
| Other owners | 348 |