- 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: 125
10-year publication summary
|
1
|
12
|
5
|
8
|
2
|
9
|
9
|
7
|
8
|
4
|
| 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 | 10576 |
10 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10956 |
9 |
| Universite de Montpellier | 1001 |
8 |
| Lixivia, Inc. | 32 |
6 |
| Ecole Nationale Superieure de Chimie de Montpellier | 208 |
5 |
| Sumitomo Metal Mining Co., Ltd. | 1794 |
5 |
| UT-Battelle, LLC | 1468 |
5 |
| Asaka Riken Co., Ltd. | 49 |
4 |
| Xiangtan University | 60 |
4 |
| The Curators of the University of Missouri | 1057 |
3 |
| Peloton Resources Pty Ltd | 10 |
3 |
| Excir Works Corp. | 31 |
3 |
| Shine Technologies, LLC | 143 |
3 |
| BASF SE | 21039 |
2 |
| Beijing University of Technology | 500 |
2 |
| Eramet | 50 |
2 |
| Institutt for Energiteknikk | 72 |
2 |
| The Queen's University of Belfast | 261 |
2 |
| Westinghouse Electric Company LLC | 1157 |
2 |
| NioCorp Developments Ltd. | 3 |
2 |
| Other owners | 43 |