C10G 31/00
Refining of hydrocarbon oils, in the absence of hydrogen, by methods not
Official title: Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for (by distillation C10G7/00)
C10G31/00 (Refining of hydrocarbon oils, in the absence of hydrogen, by methods not) appears on 1,237 US grants and 1,417 published applications in this corpus.
Search patents in C10G- Granted patents
- 1,237
- Published applications
- 1,417
- Assignees
- 609
- Inventors
- 3,012
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 11 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 18 | 0 |
| 1990 | 14 | 0 |
| 1991 | 26 | 0 |
| 1992 | 22 | 0 |
| 1993 | 11 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 13 | 0 |
| 2001 | 9 | 3 |
| 2002 | 10 | 22 |
| 2003 | 10 | 12 |
| 2004 | 7 | 25 |
| 2005 | 7 | 29 |
| 2006 | 13 | 31 |
| 2007 | 8 | 25 |
| 2008 | 21 | 47 |
| 2009 | 18 | 46 |
| 2010 | 36 | 36 |
| 2011 | 31 | 63 |
| 2012 | 22 | 48 |
| 2013 | 40 | 57 |
| 2014 | 43 | 80 |
| 2015 | 46 | 88 |
| 2016 | 68 | 104 |
| 2017 | 61 | 74 |
| 2018 | 80 | 85 |
| 2019 | 73 | 79 |
| 2020 | 63 | 72 |
| 2021 | 76 | 80 |
| 2022 | 67 | 76 |
| 2023 | 56 | 56 |
| 2024 | 47 | 65 |
| 2025 | 41 | 68 |
| 2026 | 25 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10G 31/08Refining of hydrocarbon oils, in the absence of hydrogen, by methods not401
- C10G 31/06Refining of hydrocarbon oils, in the absence of hydrogen, by methods not325
- C10G 31/09Refining of hydrocarbon oils, in the absence of hydrogen, by methods not247
- C10G 31/11Refining of hydrocarbon oils, in the absence of hydrogen, by methods not187
- C10G 31/10Refining of hydrocarbon oils, in the absence of hydrogen, by methods not141
Recent patents
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Most cited
By later US patents
- Composite membrane for facilitated transport processes117US 5,082,472 A1992
- Pressurized wet combustion at increased temperature108US 5,050,375 ADipac Associates · 1991
- Heavy oil upgrading process87US 6,524,469 B1Trans Ionics Corporation · 2003
- Acid-neutralizing filter86US 6,537,453 B2Baldwin Filters, Inc. · 2003
- Onboard fuel separation apparatus for an automobile86US 6,972,093 B2ExxonMobil Research and Engineering Company · 2005