C10M 175/00
Working-up used lubricants to recover useful products
Official title: Working-up used lubricants to recover useful products {(destructive distillation C10B; extraction and elimination of PCBs C10G7/006, C10G21/006, C10G25/006; combustion processes F23G; filtration, filters in general B01D); Cleaning (in a mechanical way B08B; integrated processes C23; solid waste B09B)}
C10M175/00 (Working-up used lubricants to recover useful products) appears on 548 US grants and 344 published applications in this corpus.
Search patents in C10M- Granted patents
- 548
- Published applications
- 344
- Assignees
- 345
- Inventors
- 1,038
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 11 | 0 |
| 1978 | 12 | 0 |
| 1979 | 8 | 0 |
| 1980 | 5 | 0 |
| 1981 | 15 | 0 |
| 1982 | 12 | 0 |
| 1983 | 14 | 0 |
| 1984 | 6 | 0 |
| 1985 | 13 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 16 | 0 |
| 1990 | 12 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 14 | 0 |
| 1994 | 13 | 0 |
| 1995 | 20 | 0 |
| 1996 | 16 | 0 |
| 1997 | 8 | 0 |
| 1998 | 15 | 0 |
| 1999 | 16 | 0 |
| 2000 | 17 | 0 |
| 2001 | 13 | 3 |
| 2002 | 19 | 8 |
| 2003 | 6 | 11 |
| 2004 | 5 | 15 |
| 2005 | 7 | 21 |
| 2006 | 8 | 18 |
| 2007 | 17 | 17 |
| 2008 | 14 | 19 |
| 2009 | 12 | 12 |
| 2010 | 7 | 16 |
| 2011 | 5 | 16 |
| 2012 | 9 | 23 |
| 2013 | 11 | 14 |
| 2014 | 10 | 9 |
| 2015 | 12 | 15 |
| 2016 | 4 | 12 |
| 2017 | 8 | 10 |
| 2018 | 5 | 15 |
| 2019 | 19 | 13 |
| 2020 | 6 | 13 |
| 2021 | 13 | 11 |
| 2022 | 6 | 8 |
| 2023 | 7 | 14 |
| 2024 | 12 | 10 |
| 2025 | 10 | 13 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C10M 175/0025Working-up used lubricants to recover useful products: by thermal processes128
- C10M 175/0016Working-up used lubricants to recover useful products: with the use of chemical108
- C10M 175/0091Treatment of oils in a continuous lubricating circuit99
- C10M 175/0058Working-up used lubricants to recover useful products: by filtration and centrifugation processes94
- C10M 175/04Aqueous emulsion based77
- C10M 175/005Working-up used lubricants to recover useful products: using extraction processes55
- C10M 175/02Mineral-oil based38
- C10M 175/0008Working-up used lubricants to recover useful products: with the use of adsorbentia35
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.
- Systems and methods for collecting and transporting biofuel components17 Mar 2026US 12,577,486 B2
- Solvency enhancer compositions, methods of preparation and methods of use thereof10 Mar 2026US 12,570,916 B2Fluitec N.V.
- Membrane separation of used oil and compositions generated3 Feb 2026US 12,540,290 B2ExxonMobil Technology and Engineering Company
- Control method for circulation and reclamation of industrial oil, control system for circulation and reclamation of industrial oil, and production method for reclaimed industrial oil composition1 Oct 2026US 2026/0297453 A1Citizen Watch Co., Ltd.
- Process for recycling a circular hydrocarbon from a used high-performance lubricant24 Sep 2026US 2026/0286247 A1ExxonMobil Technology and Engineering Company
- Catalytic depolymerisation of polymeric materials10 Sep 2026US 2026/0265630 A1GreenMantra Recycling Technologies Ltd.
- Production of sustainable sulfonates through treatment of re-refined base oils13 Aug 2026US 2026/0234102 A1HollyFrontier LSP Brand Strategies LLC
- Systems and methods for collecting and transporting biofuel components9 Jul 2026US 2026/0193557 A1
Most cited
By later US patents
- Oil filter containing an oil soluble thermoplastic additive material therein116US 5,591,330 AT/F Purifiner, Inc. · 1997
- Method for rejuvenating lubricating oils113US 5,069,799 AExxon Research & Engineering Co. · 1991
- Multi-stage fluid filter, and methods of making and using same112US 6,379,564 B12002
- Method for removing polynuclear aromatics from used lubricating oils111US 5,225,081 AExxon Research & Engineering Co. · 1993
- Oil filter to introduce anti-wear additives into engine lubricating system108US 6,045,692 AAlliedSignal Inc. · 2000