- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 23/72 - Copper
Patent holdings for IPC class B01J 23/72
Total number of patents in this class: 1387
10-year publication summary
|
110
|
95
|
102
|
121
|
101
|
115
|
103
|
104
|
91
|
24
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF Corporation | 2039 |
51 |
| Johnson Matthey Public Limited Company | 1852 |
44 |
| BASF SE | 19740 |
36 |
| IFP Energies Nouvelles | 2717 |
30 |
| Centre National de La Recherche Scientifique | 9632 |
20 |
| Clariant International Ltd. | 978 |
18 |
| Uop LLC | 4083 |
15 |
| Clean Diesel Technologies, Inc. | 74 |
14 |
| LG Chem, Ltd. | 17205 |
13 |
| Nitto Denko Corporation | 7879 |
13 |
| Kao Corporation | 4843 |
13 |
| Toyota Motor Corporation | 28582 |
11 |
| The Furukawa Electric Co., Ltd. | 3486 |
11 |
| China Petroleum & Chemical Corporation | 1623 |
9 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
8 |
| Hyundai Motor Company | 19021 |
8 |
| Saudi Arabian Oil Company | 11322 |
8 |
| Umicore AG & Co. KG | 867 |
8 |
| Hanwha Solutions Corporation | 572 |
8 |
| Samsung Electronics Co., Ltd. | 131630 |
7 |
| Other owners | 1042 |