C10M 175/0016
Working-up used lubricants to recover useful products: with the use of chemical
Official title: {with the use of chemical agents}
C10M175/0016 (Working-up used lubricants to recover useful products: with the use of chemical) appears on 108 US grants and 70 published applications in this corpus.
Search patents in C10M- Granted patents
- 108
- Published applications
- 70
- Assignees
- 77
- Inventors
- 219
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 3 |
| 2002 | 5 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 3 |
| 2007 | 2 | 4 |
| 2008 | 3 | 7 |
| 2009 | 3 | 3 |
| 2010 | 3 | 3 |
| 2011 | 1 | 3 |
| 2012 | 0 | 2 |
| 2013 | 5 | 4 |
| 2014 | 2 | 6 |
| 2015 | 4 | 1 |
| 2016 | 2 | 3 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 3 |
| 2020 | 1 | 1 |
| 2021 | 3 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 6 |
| 2024 | 4 | 4 |
| 2025 | 4 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid composition for purification of oil29 Jul 2025US 12,370,477 B2Skf Recondoil AB
- Method for hydrotreating and recycling waste lubricating oil8 Apr 2025US 12,270,008 B2China University of Petroleum (East China)
- 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.
- Method for pre-hydrotreating and purifying waste lubricating oil24 Dec 2024US 12,173,252 B2China University of Petroleum (East China)
- Method of using machine oil, machine oil regeneration system, and method of adding machine oil regeneration unit9 Jul 2026US 2026/0193562 A1Mitsubishi Heavy Industries, Ltd.
- Method for recycling cold-rolled oil sludge23 Apr 2026US 2026/0109912 A1
- 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.
- Composition and Method of Use of a Concentrated Asphaltene Polymer Residue from VTAE3 Oct 2024US 2024/0327747 A1Safety-Kleen Systems, Inc.
- Liquid composition for purification of oil1 Aug 2024US 2024/0252963 A1Skf Recondoil AB
Most cited
By later US patents
- Staged oil filter incorporating timed release oil conditioner81US 6,623,636 B2Honeywell International Inc. · 2003
- Reclaiming used lubricating oils67US 4,151,072 APhillips Petroleum Company · 1979
- Process for treating used motor oil and synthetic crude oil52US 4,432,865 A1984
- Process for treating used industrial oil48US 4,431,524 A1984
- Reclaiming used motor oil39US 3,930,988 APhillips Petroleum Company · 1976