C10M 175/0033
Using distillation processes
Official title: {using distillation processes; devices therefor}
C10M175/0033 (Using distillation processes) appears on 73 US grants and 51 published applications in this corpus.
Search patents in C10M- Granted patents
- 73
- Published applications
- 51
- Assignees
- 52
- Inventors
- 156
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 3 |
| 2002 | 5 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 4 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 3 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 6 |
| 2019 | 8 | 5 |
| 2020 | 1 | 3 |
| 2021 | 3 | 1 |
| 2022 | 1 | 2 |
| 2023 | 2 | 5 |
| 2024 | 4 | 2 |
| 2025 | 4 | 6 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of producing lube base oil and lube base oil produced thereby21 Apr 2026US 12,606,755 B2SK Enmove Co., Ltd.
- Membrane separation of used oil and compositions generated3 Feb 2026US 12,540,290 B2ExxonMobil Technology and Engineering Company
- Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby23 Sep 2025US 12,421,462 B2SK Enmove Co., Ltd.
- Enhancement of the byproducts of a regeneration process of exhaust oils1 Apr 2025US 12,264,285 B2ITELYUM REGENERATION S.p.A.
- Process of producing high-quality lube base oil by using refined oil fraction of waste lubricant18 Feb 2025US 12,227,705 B2SK Enmove Co., Ltd.
- Membrane separation of used oil and compositions generated16 Oct 2025US 2025/0320427 A1ExxonMobil Technology and Engineering Company
- Method for producing recycled lubricating base oil from waste lubricating oil and recycled lubricating base oil produced thereby28 Aug 2025US 2025/0270467 A1SK Enmove Co., Ltd.
- Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby23 Jan 2025US 2025/0026992 A1SK Enmove Co., Ltd.
- Method of producing lube base oil and lube base oil produced thereby23 Jan 2025US 2025/0026997 A1SK Enmove Co., Ltd.
- Method for deodorizing regenerated lubricating oils using supercritical co29 Jan 2025US 2025/0011676 A1Totalenergies Onetech
Most cited
By later US patents
- Rerefining of used motor oils76US 4,101,414 AUnitech Chemical Inc. · 1978
- Used lubricating oil reclaiming41US 5,306,419 ATexaco Inc. · 1994
- Process and plant for purifying spent oil40US 5,759,385 AInstitut Francais du Petrole · 1998
- Method and apparatus for reclaiming contaminated oil35US 4,784,751 AKeller Machine Works · 1988
- Apparatus for reclaiming fuel oil from waste oil20US 5,871,618 A1999