- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 3/28 - Amines
Patent holdings for IPC class C22B 3/28
Total number of patents in this class: 120
10-year publication summary
|
2
|
15
|
5
|
8
|
2
|
11
|
10
|
8
|
9
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Centre National de La Recherche Scientifique | 10418 |
9 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10928 |
8 |
| Universite de Montpellier | 984 |
7 |
| Lixivia, Inc. | 32 |
6 |
| Sumitomo Metal Mining Co., Ltd. | 1777 |
5 |
| UT-Battelle, LLC | 1447 |
5 |
| Asaka Riken Co., Ltd. | 49 |
4 |
| Ecole Nationale Superieure de Chimie de Montpellier | 204 |
4 |
| Xiangtan University | 61 |
4 |
| The Curators of the University of Missouri | 1042 |
3 |
| Peloton Resources Pty Ltd | 10 |
3 |
| Excir Works Corp. | 30 |
3 |
| BASF SE | 20912 |
2 |
| Beijing University of Technology | 492 |
2 |
| Eramet | 49 |
2 |
| Institutt for Energiteknikk | 72 |
2 |
| The Queen's University of Belfast | 263 |
2 |
| Westinghouse Electric Company LLC | 1134 |
2 |
| NioCorp Developments Ltd. | 3 |
2 |
| Nordic Mining ASA | 4 |
2 |
| Other owners | 43 |