- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 23/31 - Chromium, molybdenum or tungsten combined with bismuth
Patent holdings for IPC class B01J 23/31
Total number of patents in this class: 87
10-year publication summary
8
|
6
|
2
|
6
|
4
|
4
|
5
|
4
|
7
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Chem, Ltd. | 17205 |
19 |
Asahi Kasei Chemicals Corporation | 809 |
5 |
BASF SE | 19740 |
4 |
Dow Global Technologies LLC | 10147 |
4 |
Celanese International Corporation | 879 |
3 |
Shell Internationale Research Maatschappij B.V. | 3792 |
2 |
Shell Oil Company | 2196 |
2 |
Rohm and Haas Company | 2805 |
2 |
Mitsubishi Chemical Corporation | 4313 |
2 |
National Institute of Advanced Industrial Science and Technology | 3677 |
2 |
Japan Technological Research Association of Artificial Photosynthetic Chemical Process | 52 |
2 |
ENEOS Corporation | 611 |
2 |
Promethium Limited | 2 |
2 |
Samsung Electronics Co., Ltd. | 131630 |
1 |
LG Electronics Inc. | 69257 |
1 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
Centre National de La Recherche Scientifique | 9632 |
1 |
FUJIFILM Corporation | 27102 |
1 |
BASF AG | 1258 |
1 |
Babcock-Hitachi Kabushiki Kaisha | 107 |
1 |
Other owners | 29 |