- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 4/00 - Feed devices; Feed or outlet control devices
Patent holdings for IPC class B01J 4/00
Total number of patents in this class: 1586
10-year publication summary
|
100
|
108
|
139
|
121
|
166
|
146
|
148
|
122
|
119
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20367 |
41 |
| SABIC Global Technologies B.V. | 4186 |
37 |
| Watt Fuel Cell Corp. | 140 |
33 |
| LG Chem, Ltd. | 17620 |
32 |
| Chevron Phillips Chemical Company LP | 1816 |
28 |
| IFP Energies Nouvelles | 2816 |
23 |
| Uop LLC | 4187 |
22 |
| ExxonMobil Chemical Patents Inc. | 4118 |
21 |
| Ecolab USA Inc. | 5334 |
20 |
| Dow Global Technologies LLC | 10139 |
19 |
| Borealis AG | 2698 |
15 |
| Crititech, Inc. | 80 |
14 |
| Tokyo Electron Limited | 12067 |
13 |
| NOVA Chemicals (International) S.A. | 755 |
13 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3581 |
12 |
| Shell Internationale Research Maatschappij B.V. | 3722 |
11 |
| Fujikin Incorporated | 688 |
11 |
| Applied Materials, Inc. | 17676 |
10 |
| Chevron U.S.A. Inc. | 3844 |
9 |
| Basell Polyolefine GmbH | 554 |
9 |
| Other owners | 1193 |