B01D 61/36
Pervaporation
Official title: Pervaporation; Membrane distillation; Liquid permeation
B01D61/36 (Pervaporation) appears on 911 US grants and 1,009 published applications in this corpus.
Search patents in B01D- Granted patents
- 911
- Published applications
- 1,009
- Assignees
- 550
- Inventors
- 2,244
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 18 | 0 |
| 1989 | 17 | 0 |
| 1990 | 31 | 0 |
| 1991 | 32 | 0 |
| 1992 | 29 | 0 |
| 1993 | 11 | 0 |
| 1994 | 10 | 0 |
| 1995 | 16 | 0 |
| 1996 | 16 | 0 |
| 1997 | 10 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 2 |
| 2002 | 11 | 11 |
| 2003 | 11 | 16 |
| 2004 | 10 | 17 |
| 2005 | 4 | 17 |
| 2006 | 9 | 26 |
| 2007 | 7 | 18 |
| 2008 | 17 | 35 |
| 2009 | 15 | 26 |
| 2010 | 19 | 54 |
| 2011 | 20 | 34 |
| 2012 | 30 | 41 |
| 2013 | 36 | 45 |
| 2014 | 21 | 38 |
| 2015 | 27 | 56 |
| 2016 | 37 | 51 |
| 2017 | 36 | 63 |
| 2018 | 34 | 42 |
| 2019 | 50 | 51 |
| 2020 | 48 | 61 |
| 2021 | 40 | 55 |
| 2022 | 36 | 55 |
| 2023 | 36 | 50 |
| 2024 | 32 | 46 |
| 2025 | 46 | 61 |
| 2026 | 18 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Feedstock solution flow concentration system29 Sep 2026US 12,746,511 B2Asahi Kasei Kabushiki Kaisha
- Resonant thermal oscillator to improve output of a thermo-fluidic system22 Sep 2026US 12,741,232 B2William Marsh Rice University
- Surface-treated porous materials having filtration properties and methods of preparing them18 Aug 2026US 12,708,879 B2Aculon, Inc.
- Systems and methods for harnessing thermal gradient energy18 Aug 2026US 12,712,192 B2
- System and method for reclaiming solvent2 Jun 2026US 12,643,071 B2Donaldson Company, Inc.
- Salt-rejecting continuous passive solar thermal desalination via thin-film condensation8 Oct 2026US 2026/0307012 A1The Regents of the University of California
- Acid gas removal apparatus and acid gas removal method24 Sep 2026US 2026/0284580 A1Kabushiki Kaisha Toshiba
- Process and system for dehydrating a product stream in ethanol production10 Sep 2026US 2026/0263961 A1Whitefox Technologies Limited
- Device and method for purifying a fluid in the liquid phase10 Sep 2026US 2026/0264020 A1
- Method of regenerating organic solvent, organic solvent regenerator, and substrate processing system27 Aug 2026US 2026/0249246 A1SCREEN Holdings Co., Ltd.
Most cited
By later US patents
- Fuel supply apparatus for an internal combustion engine128US 6,711,893 B2ExxonMobil Research and Engineering Company · 2004
- Ethanol recovery process117US 7,732,173 B2Membrane Technology and Research, Inc. · 2010
- Methods to de-sulfate saline streams107US 7,789,159 B12010
- Microporous membranes and uses thereof103US 6,258,276 B1McMaster University · 2001
- Desalination device and process95US 4,545,862 AW. L. Gore & Associates, Inc. · 1985