C10M 175/005
Working-up used lubricants to recover useful products: using extraction processes
Official title: {using extraction processes; apparatus therefor}
C10M175/005 (Working-up used lubricants to recover useful products: using extraction processes) appears on 55 US grants and 44 published applications in this corpus.
Search patents in C10M- Granted patents
- 55
- Published applications
- 44
- Assignees
- 47
- Inventors
- 128
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 4 |
| 2012 | 1 | 2 |
| 2013 | 4 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 4 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 2 |
| 2023 | 0 | 6 |
| 2024 | 4 | 1 |
| 2025 | 5 | 9 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for recycling a circular hydrocarbon from a used high performance lubricant16 Jun 2026US 12,655,364 B2ExxonMobil Technology and Engineering Company
- 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.
- Solvent extraction system and method5 Aug 2025US 12,377,367 B2Skf Recondoil AB
- Process for recycling a circular hydrocarbon from a used high-performance lubricant24 Sep 2026US 2026/0286247 A1ExxonMobil Technology and Engineering Company
- Use of re-refined base oil25 Jun 2026US 2026/0176543 A1Shell USA, Inc.
- 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.
- Process for recycling a circular hydrocarbon from a used high performance lubricant28 Aug 2025US 2025/0270468 A1ExxonMobil Technology and Engineering Company
Most cited
By later US patents
- Process for the separation of mixtures of substances103US 3,969,196 AStudiengesellschaft Kohle mbH · 1976
- Liquid decontamination apparatus40US 5,423,979 A1995
- Process and plant for purifying spent oil40US 5,759,385 AInstitut Francais du Petrole · 1998
- Process for regenerating exhausted oils38US 4,233,140 ASNAMPROGETTI S.p. A. · 1980
- Method of rerefining oil by distillation and extraction35US 4,021,333 AThe Lubrizol Corporation · 1977