- 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: 662
10-year publication summary
|
25
|
34
|
22
|
35
|
38
|
23
|
19
|
38
|
60
|
100
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Outotec (Finland) Oy | 461 |
35 |
| Metso Finland Oy | 621 |
30 |
| Freeport Minerals Corporation | 117 |
26 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1246 |
21 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1215 |
21 |
| Gem Co., Ltd. | 226 |
18 |
| PT Gem Indonesia New Energy Materials | 146 |
18 |
| PT Qmb New Energy Materials | 146 |
17 |
| FLSmidth A/S | 776 |
14 |
| China ENFI Engineering Corp. | 106 |
12 |
| CPS Technology Holdings LLC | 745 |
11 |
| Hatch Ltd. | 215 |
10 |
| PT ESG New Energy Material | 49 |
10 |
| BASF SE | 21098 |
9 |
| Differential Engineering Inc. | 13 |
8 |
| Technological Resources Pty. Limited | 451 |
8 |
| Primobius GmbH | 15 |
8 |
| Sumitomo Metal Mining Co., Ltd. | 1794 |
7 |
| Schlumberger Technology Corporation | 11075 |
6 |
| Cidra Corporate Services, LLC | 96 |
6 |
| Other owners | 367 |