C10G 21/00
Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with
Official title: Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents (C10G17/00, C10G19/00 take precedence)
C10G21/00 (Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with) appears on 1,202 US grants and 1,084 published applications in this corpus.
Search patents in C10G- Granted patents
- 1,202
- Published applications
- 1,084
- Assignees
- 463
- Inventors
- 2,631
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 20 | 0 |
| 1978 | 15 | 0 |
| 1979 | 21 | 0 |
| 1980 | 21 | 0 |
| 1981 | 18 | 0 |
| 1982 | 22 | 0 |
| 1983 | 21 | 0 |
| 1984 | 19 | 0 |
| 1985 | 25 | 0 |
| 1986 | 16 | 0 |
| 1987 | 22 | 0 |
| 1988 | 23 | 0 |
| 1989 | 20 | 0 |
| 1990 | 13 | 0 |
| 1991 | 19 | 0 |
| 1992 | 15 | 0 |
| 1993 | 14 | 0 |
| 1994 | 12 | 0 |
| 1995 | 9 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 13 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 6 |
| 2002 | 11 | 13 |
| 2003 | 16 | 17 |
| 2004 | 10 | 17 |
| 2005 | 8 | 13 |
| 2006 | 10 | 16 |
| 2007 | 8 | 19 |
| 2008 | 6 | 21 |
| 2009 | 13 | 38 |
| 2010 | 21 | 43 |
| 2011 | 16 | 55 |
| 2012 | 23 | 56 |
| 2013 | 34 | 69 |
| 2014 | 50 | 104 |
| 2015 | 72 | 72 |
| 2016 | 66 | 55 |
| 2017 | 50 | 69 |
| 2018 | 57 | 63 |
| 2019 | 68 | 53 |
| 2020 | 65 | 56 |
| 2021 | 46 | 42 |
| 2022 | 37 | 52 |
| 2023 | 27 | 49 |
| 2024 | 33 | 37 |
| 2025 | 41 | 34 |
| 2026 | 13 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10G 21/06Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with615
- C10G 21/003Solvent de-asphalting340
- C10G 21/28Recovery of used solvent227
- C10G 21/30Controlling or regulating66
- C10G 21/02Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with55
- C10G 21/006Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with44
Recent patents
- Process for treating a gas stream from plastic pyrolisis and/or biomass pyrolisis, and installation for integration into a steam cracker11 Aug 2026US 12,703,671 B2Technip Energies France
- Process for recycling a circular hydrocarbon from a used high performance lubricant16 Jun 2026US 12,655,364 B2ExxonMobil Technology and Engineering Company
- Production of hydrocarbons from recycled or renewable organic material26 May 2026US 12,637,622 B2Neste Oyj
- Process for mixing dilution steam with liquid hydrocarbons before steam cracking26 May 2026US 12,637,626 B2Lummus Technology Inc.
- Mesoporous zeolites and uses thereof in dewaxing hydrocarbon feeds28 Apr 2026US 12,611,659 B2Zeopore Technologies NV
- Hydrogen sulfide scavengers17 Sep 2026US 2026/0275199 A1Ecolab USA Inc.
- Method for liquid-liquid extraction of aromatics with extract recycles streams20 Aug 2026US 2026/0242675 A1Ifp Energies Nouvelles
- Method for obtaining a wax from a pyrolysis residue13 Aug 2026US 2026/0234480 A1Omv Downstream GmbH
- Process for removing contaminants from waste plastics oil6 Aug 2026US 2026/0226354 A1Shell USA, Inc.
- Hydrocarbon treatment including pyrolysis oil extraction30 Jul 2026US 2026/0218069 A1NOVA Chemicals (International) S.A.
Most cited
By later US patents
- Field upgrading of heavy oil and bitumen268US 6,357,526 B1Kellogg Brown & Root LLC · 2002
- Upgrading shale oil by a combination process221US 4,605,489 AOccidental Oil Shale, Inc. · 1986
- Upgrading shale oil by a combination process218US 4,623,444 AOccidental Oil Shale, Inc. · 1986
- Composition and method for sweetening hydrocarbons161US 4,978,512 AQuaker Chemical Corporation · 1990
- Enhanced solvent deasphalting process for heavy hydrocarbon feedstocks utilizing solid adsorbent114US 7,566,394 B2Saudi Arabian Oil Company · 2009