- All sections
- C - Chemistrymetallurgy
- C10G - Cracking hydrocarbon oilsproduction of liquid hydrocarbon mixtures, e.g. by destructive hydrogenation, oligomerisation, polymerisationrecovery of hydrocarbon oils from oil-shale, oil-sand, or gasesrefining mixtures mainly consisting of hydrocarbonsreforming of naphthamineral waxes
- C10G 21/28 - Recovery of used solvent
Patent holdings for IPC class C10G 21/28
Total number of patents in this class: 231
10-year publication summary
|
9
|
14
|
14
|
10
|
13
|
19
|
9
|
10
|
9
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13921 |
23 |
| Shell Internationale Research Maatschappij B.V. | 3493 |
13 |
| Uop LLC | 4289 |
11 |
| Shell Oil Company | 2111 |
10 |
| IFP Energies Nouvelles | 3015 |
10 |
| Aramco Services Company | 4164 |
8 |
| AMT International, Inc. | 41 |
7 |
| CPC Corporation, Taiwan | 66 |
7 |
| ExxonMobil Chemical Patents Inc. | 3879 |
6 |
| Fort Hills Energy L.P. | 87 |
5 |
| The Queen's University of Belfast | 260 |
5 |
| INEOS Americas LLC | 30 |
4 |
| Kellogg Brown & Root LLC | 520 |
4 |
| Canadian Natural Upgrading Limited | 44 |
4 |
| BASF SE | 21131 |
3 |
| Council of Scientific & Industrial Research | 1435 |
3 |
| Reliance Industries Limited | 453 |
3 |
| SABIC Global Technologies B.V. | 4471 |
3 |
| Sulzer Management AG | 689 |
3 |
| SunCor Energy Inc. | 746 |
3 |
| Other owners | 96 |