D06F 43/081
Reclaiming or recovering the solvent from a mixture of solvent and contaminants
Official title: {Reclaiming or recovering the solvent from a mixture of solvent and contaminants, e.g. by distilling}
D06F43/081 (Reclaiming or recovering the solvent from a mixture of solvent and contaminants) appears on 123 US grants and 92 published applications in this corpus.
Search patents in D06F- Granted patents
- 123
- Published applications
- 92
- Assignees
- 57
- Inventors
- 233
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 3 |
| 2004 | 1 | 2 |
| 2005 | 1 | 20 |
| 2006 | 1 | 8 |
| 2007 | 4 | 8 |
| 2008 | 4 | 2 |
| 2009 | 8 | 4 |
| 2010 | 5 | 1 |
| 2011 | 2 | 1 |
| 2012 | 5 | 4 |
| 2013 | 2 | 3 |
| 2014 | 0 | 0 |
| 2015 | 2 | 3 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 2 |
| 2019 | 3 | 0 |
| 2020 | 1 | 4 |
| 2021 | 1 | 0 |
| 2022 | 1 | 5 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 12 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carbon dioxide-based cleaning systems28 Jul 2026US 12,692,646 B2Hamilton Sundstrand Space Systems International, Inc.
- Washing machine and method of controlling the same2 Jun 2026US 12,644,220 B2Samsung Electronics Co., Ltd.
- Laundry treating apparatus and method for controlling the same24 Mar 2026US 12,584,265 B2LG Electronics Inc.
- Laundry treating apparatus10 Mar 2026US 12,571,155 B2LG Electronics Inc.
- Washing machine15 Jul 2025US 12,359,363 B2LG Electronics Inc.
- Microgravity dry cleaning systems1 Oct 2026US 2026/0297839 A1Hamilton Sundstrand Space Systems International, Inc.
- Washing machine and method for controlling same27 Aug 2026US 2026/0250897 A1Samsung Electronics Co., Ltd.
- Carbon dioxide-based cleaning systems11 Sep 2025US 2025/0283270 A1Hamilton Sundstrand Space Systems International, Inc.
- Washing machine10 Jul 2025US 2025/0223745 A1Samsung Electronics Co., Ltd.
- Distillation unit5 Jun 2025US 2025/0180295 A1LG Electronics Inc.
Most cited
By later US patents
- Carbon dioxide dry cleaning system112US 5,904,737 AMVE, Inc. · 1999
- Dry cleaning method and solvent100US 5,942,007 AGreenEarth Cleaning, LLC · 1999
- Dry cleaning method and solvent82US 5,865,852 A1999
- Dry cleaning method and solvent/detergent mixture82US 6,063,135 AGreenEarth Cleaning, LLC · 2000
- Dry cleaning apparatus and method capable of utilizing a siloxane composition as a solvent78US 6,059,845 AGreenEarth Cleaning, LLC · 2000