B01D 61/3641
Comprising multiple membrane distillation steps
Official title: {comprising multiple membrane distillation steps}
B01D61/3641 (Comprising multiple membrane distillation steps) appears on 85 US grants and 115 published applications in this corpus.
Search patents in B01D- Granted patents
- 85
- Published applications
- 115
- Assignees
- 68
- Inventors
- 227
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 2 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 5 |
| 2017 | 2 | 10 |
| 2018 | 6 | 5 |
| 2019 | 11 | 8 |
| 2020 | 7 | 13 |
| 2021 | 4 | 16 |
| 2022 | 9 | 7 |
| 2023 | 7 | 6 |
| 2024 | 6 | 12 |
| 2025 | 9 | 11 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Membrane wastewater treatment system and method thereof7 Apr 2026US 12,595,193 B2Memsift Innovations Pte. Ltd.
- Method for concentrating raw material solution, and system for concentrating raw material solution17 Mar 2026US 12,576,362 B2Asahi Kasei Kabushiki Kaisha
- Multi-stage air gap membrane distillation system and process17 Feb 2026US 12,551,847 B2King Fahd University of Petroleum and Minerals
- Multi-stage permeate gap membrane distillation system and process17 Feb 2026US 12,551,848 B2King Fahd University of Petroleum and Minerals
- System for desalinating water with multiple desalination processes30 Dec 2025US 12,508,547 B1King Fahd University of Petroleum and Minerals
- Process and system for dehydrating a product stream in ethanol production10 Sep 2026US 2026/0263961 A1Whitefox Technologies Limited
- Method for Concentrating Raw Material Solution, and System for Concentrating Raw Material Solution23 Jul 2026US 2026/0208109 A1Asahi Kasei Kabushiki Kaisha
- Dewaterer systems and methods16 Jul 2026US 2026/0199839 A1
- Method for Concentrating Raw Material Solution, and System for Concentrating Raw Material Solution9 Jul 2026US 2026/0192254 A1Asahi Kasei Kabushiki Kaisha
- Hybrid process and system for recovering water9 Jul 2026US 2026/0192255 A1Sunvapor, Inc.
Most cited
By later US patents
- Desalination device and process95US 4,545,862 AW. L. Gore & Associates, Inc. · 1985
- Separation process using pervaporation and dephlegmation80US 6,755,975 B2Membrane Technology and Research, Inc. · 2004
- Distillation apparatus with porous membrane and heat pump69US 5,300,197 AHitachi, Ltd. · 1994
- Combined membrane-distillation-forward-osmosis systems and methods of use53US 8,029,671 B2Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno · 2011
- Method and apparatus for dehydrating mixtures of organic liquids and water38US 4,405,409 A1983