- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 3/16 - Fractionating columns in which vapour bubbles through liquid
Patent holdings for IPC class B01D 3/16
Total number of patents in this class: 193
10-year publication summary
|
23
|
28
|
36
|
19
|
9
|
8
|
3
|
6
|
12
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koch-Glitsch, LP | 197 |
16 |
| BASF SE | 21306 |
14 |
| Sulzer Management AG | 712 |
10 |
| Gradiant Corporation | 150 |
9 |
| Uop LLC | 4390 |
8 |
| Celanese International Corporation | 912 |
4 |
| Eastman Chemical Company | 2094 |
4 |
| Linde Aktiengesellschaft | 1419 |
4 |
| North Carolina State University | 1595 |
4 |
| Perlemax Ltd | 11 |
4 |
| Praxair Technology, Inc. | 1215 |
4 |
| ExxonMobil Research And Engineering Company | 2400 |
3 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4122 |
3 |
| Taiyo Nippon Sanso Corporation | 350 |
3 |
| Woven Metal Products, Inc. | 19 |
3 |
| Sunlight Aerospace Inc. | 91 |
3 |
| Nantong Reason Environmental Protection Technology Co., Ltd. | 6 |
3 |
| LG Chem, Ltd. | 17950 |
2 |
| Sumitomo Chemical Company, Limited | 8968 |
2 |
| ExxonMobil Chemical Patents Inc. | 3768 |
2 |
| Other owners | 88 |