- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 3/03 - Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
Patent holdings for IPC class B01J 3/03
Total number of patents in this class: 203
10-year publication summary
|
10
|
16
|
15
|
21
|
13
|
17
|
11
|
12
|
9
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Chemical Patents Inc. | 3976 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10931 |
7 |
| CEM Corporation | 101 |
6 |
| LG Innotek Co., Ltd. | 7685 |
5 |
| Aixtron SE | 320 |
5 |
| MLS Mikrowellen-Labor-Systeme GmbH | 10 |
4 |
| Shell Internationale Research Maatschappij B.V. | 3549 |
3 |
| Element Six Limited | 120 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2870 |
3 |
| Picosun Oy | 146 |
3 |
| SMS Demag AG | 99 |
3 |
| BASF SE | 20945 |
2 |
| Massachusetts Institute of Technology | 10066 |
2 |
| Dow Global Technologies LLC | 10371 |
2 |
| Board of Regents, The University of Texas System | 5821 |
2 |
| Air Products and Chemicals, Inc. | 1443 |
2 |
| Hemlock Semiconductor Corporation | 33 |
2 |
| Element Six Abrasives S.A. | 147 |
2 |
| Foremost Universal LP | 10 |
2 |
| Heesung Catalysts Corporation | 109 |
2 |
| Other owners | 136 |