- 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: 225
10-year publication summary
13
|
9
|
15
|
15
|
10
|
14
|
24
|
10
|
10
|
8
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Saudi Arabian Oil Company | 13206 |
23 |
Shell Internationale Research Maatschappij B.V. | 3539 |
13 |
Uop LLC | 4238 |
11 |
Shell Oil Company | 2139 |
10 |
IFP Energies Nouvelles | 2933 |
10 |
Aramco Services Company | 3981 |
8 |
AMT International, Inc. | 45 |
7 |
CPC Corporation, Taiwan | 62 |
7 |
ExxonMobil Chemical Patents Inc. | 3976 |
6 |
Fort Hills Energy L.P. | 85 |
5 |
The Queen's University of Belfast | 262 |
5 |
INEOS Americas LLC | 29 |
4 |
Kellogg Brown & Root LLC | 516 |
4 |
Canadian Natural Upgrading Limited | 46 |
4 |
Council of Scientific & Industrial Research | 1426 |
3 |
SABIC Global Technologies B.V. | 4347 |
3 |
Sulzer Management AG | 664 |
3 |
SunCor Energy Inc. | 736 |
3 |
ThyssenKrupp AG | 3290 |
3 |
University of Dayton | 122 |
3 |
Other owners | 90 |