- 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: 141
10-year publication summary
|
15
|
5
|
8
|
2
|
11
|
11
|
8
|
11
|
6
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Centre National de La Recherche Scientifique | 10976 |
11 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11110 |
9 |
| Universite de Montpellier | 1038 |
8 |
| UT-Battelle, LLC | 1509 |
6 |
| Ecole Nationale Superieure de Chimie de Montpellier | 232 |
5 |
| Sumitomo Metal Mining Co., Ltd. | 1965 |
5 |
| Asaka Riken Co., Ltd. | 54 |
4 |
| Xiangtan University | 60 |
4 |
| Cycad Group, LLC | 12 |
4 |
| Shine Technologies, LLC | 165 |
4 |
| The Curators of the University of Missouri | 1085 |
3 |
| Peloton Resources Pty Ltd | 9 |
3 |
| Excir Works Corp. | 31 |
3 |
| BASF SE | 21294 |
2 |
| Beijing University of Technology | 519 |
2 |
| Eramet | 50 |
2 |
| Institute of Process Engineering, Chinese Academy of Sciences | 327 |
2 |
| Institutt for Energiteknikk | 67 |
2 |
| Lixivia, Inc. | 17 |
2 |
| Nippon Steel Corporation | 6802 |
2 |
| Other owners | 58 |