- 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: 471
10-year publication summary
|
21
|
25
|
28
|
46
|
55
|
30
|
26
|
24
|
22
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casale SA | 627 |
16 |
| ExxonMobil Chemical Patents Inc. | 3828 |
13 |
| BASF SE | 21113 |
12 |
| Dow Global Technologies LLC | 10770 |
12 |
| Stamicarbon B.V. | 314 |
10 |
| Outotec (Finland) Oy | 458 |
7 |
| Haldor Topsøe A/S | 637 |
6 |
| Icsip Pty Ltd | 21 |
6 |
| Basell Polyolefine GmbH | 527 |
5 |
| Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences | 243 |
5 |
| INVISTA Technologies S.a.r.l. | 400 |
5 |
| SLT Technologies, Inc. | 128 |
5 |
| Metso Finland Oy | 675 |
5 |
| The Boeing Company | 20097 |
4 |
| Uop LLC | 4309 |
4 |
| CEM Corporation | 104 |
4 |
| Gem Co., Ltd. | 354 |
4 |
| Hatch Ltd. | 222 |
4 |
| INVISTA North America S.a.r.l. | 176 |
4 |
| RDC Technologies Ltd | 4 |
4 |
| Other owners | 336 |