- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 31/24 - Phosphines
Patent holdings for IPC class B01J 31/24
Total number of patents in this class: 1131
10-year publication summary
|
84
|
82
|
76
|
101
|
52
|
65
|
91
|
93
|
77
|
64
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2212 |
35 |
| Dow Global Technologies LLC | 10555 |
27 |
| Chevron Phillips Chemical Company LP | 1851 |
27 |
| Evonik Oxeno GmbH & Co. KG | 339 |
27 |
| BASF SE | 21087 |
26 |
| LG Chem, Ltd. | 17679 |
23 |
| Takasago International Corporation | 403 |
22 |
| Dow Technology Investments LLC | 273 |
20 |
| Umicore AG & Co. KG | 862 |
18 |
| Nitto Denko Corporation | 8355 |
16 |
| Firmenich SA | 1710 |
16 |
| IFP Energies Nouvelles | 2980 |
14 |
| Saudi Arabian Oil Company | 13656 |
14 |
| DSM IP Assets B.V. | 5562 |
11 |
| National Institute of Advanced Industrial Science and Technology | 3798 |
11 |
| The University of Tokyo | 4249 |
11 |
| Mitsui Chemicals, Inc. | 3230 |
10 |
| Arlanxeo Deutschland GmbH | 279 |
10 |
| Johnson Matthey Public Limited Company | 1771 |
10 |
| The Regents of the University of California | 20289 |
9 |
| Other owners | 774 |