- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 3/32 - Carboxylic acids
Patent holdings for IPC class C22B 3/32
Total number of patents in this class: 151
10-year publication summary
|
4
|
7
|
5
|
3
|
14
|
11
|
13
|
24
|
15
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1935 |
8 |
| Botree Cycling Sci&Tech Co., Ltd. | 15 |
8 |
| JX Metals Circular Solutions Co., Ltd. | 74 |
8 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11013 |
7 |
| Centre National de La Recherche Scientifique | 10881 |
6 |
| Universite de Montpellier | 1028 |
6 |
| JX Nippon Mining & Metals Corporation | 1466 |
5 |
| Kyushu University, National University Corporation | 1695 |
5 |
| Ecole Nationale Superieure de Chimie de Montpellier | 227 |
4 |
| Xiangtan University | 60 |
4 |
| Igo Limited | 8 |
4 |
| Suzhou Botree Cycling SCI & Tech Co., Ltd | 5 |
4 |
| Fujian Golden Dragon Rare-earth Co., Ltd. | 74 |
4 |
| Adionics | 26 |
3 |
| Element 25 Limited | 3 |
3 |
| Orano Recyclage | 62 |
3 |
| BASF SE | 21129 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5952 |
2 |
| Nissin Chemical Industry Co., Ltd. | 110 |
2 |
| Electricite de France | 747 |
2 |
| Other owners | 61 |