- 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: 1174
10-year publication summary
|
84
|
77
|
105
|
54
|
66
|
95
|
96
|
79
|
67
|
39
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eastman Chemical Company | 2097 |
36 |
| Evonik Oxeno GmbH & Co. KG | 366 |
28 |
| Dow Global Technologies LLC | 11008 |
27 |
| Chevron Phillips Chemical Company LP | 1864 |
27 |
| Takasago International Corporation | 406 |
24 |
| BASF SE | 21320 |
23 |
| LG Chem, Ltd. | 17956 |
23 |
| Dow Technology Investments LLC | 279 |
20 |
| Umicore AG & Co. KG | 850 |
20 |
| Nitto Denko Corporation | 8565 |
18 |
| Firmenich SA | 1769 |
17 |
| IFP Energies Nouvelles | 3110 |
15 |
| Saudi Arabian Oil Company | 14329 |
14 |
| DSM IP Assets B.V. | 5390 |
13 |
| The University of Tokyo | 4380 |
12 |
| National Institute of Advanced Industrial Science and Technology | 3791 |
11 |
| The Regents of the University of California | 20842 |
10 |
| Centre National de La Recherche Scientifique | 11077 |
10 |
| Mitsui Chemicals, Inc. | 3262 |
10 |
| Arlanxeo Deutschland GmbH | 278 |
10 |
| Other owners | 806 |