C10G 31/11
Refining of hydrocarbon oils, in the absence of hydrogen, by methods not
Official title: by dialysis
C10G31/11 (Refining of hydrocarbon oils, in the absence of hydrogen, by methods not) appears on 187 US grants and 119 published applications in this corpus.
Search patents in C10G- Granted patents
- 187
- Published applications
- 119
- Assignees
- 68
- Inventors
- 413
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 15 | 0 |
| 1990 | 11 | 0 |
| 1991 | 18 | 0 |
| 1992 | 15 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 7 |
| 2003 | 2 | 3 |
| 2004 | 3 | 8 |
| 2005 | 3 | 11 |
| 2006 | 5 | 10 |
| 2007 | 3 | 9 |
| 2008 | 12 | 16 |
| 2009 | 4 | 13 |
| 2010 | 13 | 6 |
| 2011 | 6 | 2 |
| 2012 | 4 | 5 |
| 2013 | 3 | 2 |
| 2014 | 7 | 3 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 4 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 0 | 4 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Membrane separation of used oil and compositions generated3 Feb 2026US 12,540,290 B2ExxonMobil Technology and Engineering Company
- Wax and lube base stock products using shape selective membrane separation11 Mar 2025US 12,247,174 B2Exxon Mobil Technology and Engineering Company
- Hydrocarbon extraction and/or separation processes utilizing a membrane separator19 Nov 2024US 12,145,908 B2ExxonMobil Engineering & Technology Company
- Process for reducing injector deposits2 Jul 2024US 12,023,632 B2Shell USA, Inc.
- Liquid fuel synthesis system9 Apr 2024US 11,951,438 B2NGK Insulators, Ltd.
- Cross-flow filtration of slurry catalyst in a petroleum-based liquid carrier19 Feb 2026US 2026/0048389 A1
- Desalination of high salinity produced water using a ultra high pressure reverse osmosis membrane29 Jan 2026US 2026/0028253 A1Saudi Arabian Oil Company
- Membrane separation of used oil and compositions generated16 Oct 2025US 2025/0320427 A1ExxonMobil Technology and Engineering Company
- Liquid fuel production system and liquid fuel production method19 Jun 2025US 2025/0197750 A1NGK Insulators, Ltd.
- Process for pre-treating renewable feedstocks3 Oct 2024US 2024/0325991 A2Shell Oil Company
Most cited
By later US patents
- Composite membrane for facilitated transport processes117US 5,082,472 A1992
- Heavy oil upgrading process87US 6,524,469 B1Trans Ionics Corporation · 2003
- Onboard fuel separation apparatus for an automobile86US 6,972,093 B2ExxonMobil Research and Engineering Company · 2005
- Fluorinated polyolefin membranes for aromatics/saturates separation85US 5,396,019 AExxon Research & Engineering Co. · 1995
- Membrane process for treating a mixture containing dewaxed oil and dewaxing solvent81US 5,102,551 ATexaco Inc. · 1992