- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir 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: 452
10-year publication summary
|
23
|
21
|
26
|
34
|
48
|
63
|
34
|
28
|
23
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casale SA | 608 |
17 |
| ExxonMobil Chemical Patents Inc. | 4012 |
13 |
| Dow Global Technologies LLC | 10401 |
12 |
| BASF SE | 20892 |
11 |
| Stamicarbon B.V. | 292 |
8 |
| Outotec (Finland) Oy | 480 |
7 |
| Haldor Topsøe A/S | 659 |
7 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 233 |
5 |
| INVISTA Technologies S.a.r.l. | 416 |
5 |
| SLT Technologies, Inc. | 129 |
5 |
| RDC Technologies Ltd | 5 |
5 |
| The Boeing Company | 20031 |
4 |
| Uop LLC | 4236 |
4 |
| Basell Polyolefine GmbH | 545 |
4 |
| CEM Corporation | 102 |
4 |
| Hatch Ltd. | 213 |
4 |
| INVISTA North America S.a.r.l. | 176 |
4 |
| Metso Outotec Finland Oy | 514 |
4 |
| Advanced Biomass Solution Limited | 6 |
4 |
| Toray Industries, Inc. | 6930 |
3 |
| Other owners | 322 |