- 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: 752
10-year publication summary
|
39
|
27
|
44
|
44
|
28
|
24
|
49
|
66
|
112
|
71
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Outotec (Finland) Oy | 455 |
35 |
| Metso Finland Oy | 698 |
31 |
| Freeport Minerals Corporation | 147 |
30 |
| Gem Co., Ltd. | 362 |
25 |
| PT Qmb New Energy Materials | 257 |
23 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1273 |
21 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1227 |
21 |
| PT Gem Indonesia New Energy Materials | 156 |
18 |
| PT ESG New Energy Material | 158 |
15 |
| FLSmidth A/S | 785 |
14 |
| China ENFI Engineering Corp. | 120 |
12 |
| BASF SE | 21334 |
11 |
| CPS Technology Holdings LLC | 763 |
11 |
| Hatch Ltd. | 217 |
10 |
| Technological Resources Pty. Limited | 443 |
9 |
| Differential Engineering Inc. | 13 |
8 |
| Primobius GmbH | 15 |
8 |
| Schlumberger Technology Corporation | 11981 |
7 |
| Sumitomo Metal Mining Co., Ltd. | 2013 |
7 |
| Cidra Corporate Services, LLC | 102 |
6 |
| Other owners | 430 |