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  • 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

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