B01D 11/04
Solvent extraction: of solutions which are liquid
Official title: of solutions which are liquid
B01D11/04 (Solvent extraction: of solutions which are liquid) appears on 1,650 US grants and 1,602 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,650
- Published applications
- 1,602
- Assignees
- 1,054
- Inventors
- 4,074
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 36 | 0 |
| 1977 | 15 | 0 |
| 1978 | 17 | 0 |
| 1979 | 10 | 0 |
| 1980 | 26 | 0 |
| 1981 | 28 | 0 |
| 1982 | 30 | 0 |
| 1983 | 15 | 0 |
| 1984 | 21 | 0 |
| 1985 | 28 | 0 |
| 1986 | 16 | 0 |
| 1987 | 18 | 0 |
| 1988 | 28 | 0 |
| 1989 | 28 | 0 |
| 1990 | 16 | 0 |
| 1991 | 17 | 0 |
| 1992 | 24 | 0 |
| 1993 | 33 | 0 |
| 1994 | 10 | 0 |
| 1995 | 16 | 0 |
| 1996 | 10 | 0 |
| 1997 | 23 | 0 |
| 1998 | 21 | 0 |
| 1999 | 19 | 0 |
| 2000 | 20 | 0 |
| 2001 | 17 | 4 |
| 2002 | 17 | 14 |
| 2003 | 16 | 15 |
| 2004 | 11 | 30 |
| 2005 | 9 | 20 |
| 2006 | 14 | 40 |
| 2007 | 8 | 19 |
| 2008 | 12 | 21 |
| 2009 | 14 | 27 |
| 2010 | 19 | 35 |
| 2011 | 21 | 50 |
| 2012 | 46 | 71 |
| 2013 | 45 | 70 |
| 2014 | 41 | 76 |
| 2015 | 60 | 83 |
| 2016 | 56 | 89 |
| 2017 | 69 | 78 |
| 2018 | 77 | 89 |
| 2019 | 99 | 112 |
| 2020 | 86 | 107 |
| 2021 | 77 | 110 |
| 2022 | 65 | 123 |
| 2023 | 75 | 89 |
| 2024 | 62 | 81 |
| 2025 | 59 | 95 |
| 2026 | 50 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 11/0492Applications, solvents used625
- B01D 11/0488Flow sheets306
- B01D 11/0446Juxtaposition of mixers-settlers301
- B01D 11/0403With a supercritical fluid287
- B01D 11/0426Counter-current multistage extraction towers in a vertical or sloping position262
- B01D 11/0415In combination with membranes100
- B01D 11/0484Controlling means84
- B01D 11/0419In combination with an electric or magnetic field or with vibrations69
All 10 subgroupsShow fewer
Recent patents
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Most cited
By later US patents
- Microfabricated differential extraction device and method417US 5,932,100 AUniversity of Washington · 1999
- Microfabricated devices and methods251US 6,454,945 B1University of Washington · 2002
- Liquid CO.sub.2 /cosolvent extraction121US 4,877,530 ACF Systems Corporation · 1989
- Antigen delivery system and method of production121US 6,838,089 B1AstraZeneca AB · 2005
- Method and apparatus for the formation of particles120US 6,063,138 ABradford Particle Design Limited · 2000