- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 3/04 - Pressure vessels, e.g. autoclaves
Patent holdings for IPC class B01J 3/04
Total number of patents in this class: 432
10-year publication summary
|
29
|
23
|
21
|
26
|
32
|
48
|
63
|
31
|
26
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casale SA | 572 |
16 |
| Dow Global Technologies LLC | 10147 |
12 |
| ExxonMobil Chemical Patents Inc. | 4286 |
11 |
| BASF SE | 19740 |
10 |
| Outotec (Finland) Oy | 491 |
7 |
| Haldor Topsøe A/S | 698 |
7 |
| Stamicarbon B.V. | 265 |
6 |
| Metso Outotec Finland Oy | 795 |
6 |
| INVISTA Technologies S.a.r.l. | 450 |
5 |
| SLT Technologies, Inc. | 115 |
5 |
| Active Energy Group, plc | 10 |
5 |
| RDC Technologies Ltd | 5 |
5 |
| The Boeing Company | 19843 |
4 |
| Uop LLC | 4083 |
4 |
| CEM Corporation | 101 |
4 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 195 |
4 |
| Hatch Ltd. | 219 |
4 |
| INVISTA North America S.a.r.l. | 182 |
4 |
| Toray Industries, Inc. | 6652 |
3 |
| Avure Technologies AB | 22 |
3 |
| Other owners | 307 |