- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 7/144 - Purification, separation or stabilisation of hydrocarbonsUse of additives using membranes, e.g. selective permeation
Patent holdings for IPC class C07C 7/144
Total number of patents in this class: 336
10-year publication summary
|
25
|
31
|
43
|
27
|
31
|
26
|
21
|
26
|
17
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Uop LLC | 4244 |
44 |
| Chevron Phillips Chemical Company LP | 1830 |
12 |
| Compact Membrane Systems, Inc. | 51 |
12 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3985 |
12 |
| ExxonMobil Research And Engineering Company | 2572 |
11 |
| NGK Insulators, Ltd. | 4964 |
10 |
| Saudi Arabian Oil Company | 13185 |
10 |
| Georgia Tech Research Corporation | 2736 |
9 |
| Shell Internationale Research Maatschappij B.V. | 3537 |
7 |
| Membrane Technology and Research, Inc. | 90 |
7 |
| ExxonMobil Chemical Patents Inc. | 3977 |
6 |
| Air Liquide Advanced Technologies U.S. LLC | 89 |
6 |
| Impossible Diamond, Inc. | 18 |
6 |
| BASF SE | 20915 |
5 |
| FUJIFILM Corporation | 29399 |
5 |
| Shell Oil Company | 2139 |
5 |
| Dow Global Technologies LLC | 10332 |
5 |
| SABIC Global Technologies B.V. | 4344 |
5 |
| Zeon Corporation | 4079 |
5 |
| Linde GmbH | 1263 |
5 |
| Other owners | 149 |