- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 3/28 - Amines
Patent holdings for IPC class C22B 3/28
Total number of patents in this class: 115
10-year publication summary
5
|
2
|
15
|
5
|
8
|
2
|
11
|
10
|
8
|
7
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Centre National de La Recherche Scientifique | 9632 |
9 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
8 |
Universite de Montpellier | 920 |
7 |
Lixivia, Inc. | 36 |
6 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
5 |
UT-Battelle, LLC | 1333 |
5 |
Ecole Nationale Superieure de Chimie de Montpellier | 167 |
4 |
Xiangtan University | 52 |
4 |
The Curators of the University of Missouri | 965 |
3 |
Excir Works Corp. | 28 |
3 |
BASF SE | 19740 |
2 |
Asaka Riken Co., Ltd. | 35 |
2 |
Beijing University of Technology | 437 |
2 |
Eramet | 44 |
2 |
Her Majesty The Queen in Right of Canada AS represented by The Minister of Natural Resources Canada | 89 |
2 |
Institutt for Energiteknikk | 80 |
2 |
Peloton Resources Pty Ltd | 10 |
2 |
The Queen's University of Belfast | 264 |
2 |
Westinghouse Electric Company LLC | 1087 |
2 |
Nordic Mining ASA | 4 |
2 |
Other owners | 41 |