- 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: 459
10-year publication summary
|
23
|
21
|
25
|
28
|
46
|
55
|
30
|
25
|
24
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casale SA | 634 |
17 |
| ExxonMobil Chemical Patents Inc. | 3942 |
13 |
| Dow Global Technologies LLC | 10571 |
12 |
| BASF SE | 21098 |
11 |
| Stamicarbon B.V. | 303 |
9 |
| Outotec (Finland) Oy | 461 |
7 |
| Haldor Topsøe A/S | 641 |
6 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 239 |
5 |
| INVISTA Technologies S.a.r.l. | 406 |
5 |
| SLT Technologies, Inc. | 128 |
5 |
| RDC Technologies Ltd | 5 |
5 |
| Metso Finland Oy | 621 |
5 |
| The Boeing Company | 20186 |
4 |
| Uop LLC | 4259 |
4 |
| Basell Polyolefine GmbH | 543 |
4 |
| CEM Corporation | 103 |
4 |
| Hatch Ltd. | 215 |
4 |
| INVISTA North America S.a.r.l. | 176 |
4 |
| Topsoe A/S | 959 |
4 |
| Advanced Biomass Solution Limited | 5 |
4 |
| Other owners | 327 |