B01D 61/3621
Comprising multiple pervaporation steps
Official title: {comprising multiple pervaporation steps}
B01D61/3621 (Comprising multiple pervaporation steps) appears on 76 US grants and 84 published applications in this corpus.
Search patents in B01D- Granted patents
- 76
- Published applications
- 84
- Assignees
- 61
- Inventors
- 230
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 2 |
| 2004 | 2 | 4 |
| 2005 | 0 | 2 |
| 2006 | 0 | 6 |
| 2007 | 0 | 4 |
| 2008 | 4 | 3 |
| 2009 | 3 | 1 |
| 2010 | 3 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 8 |
| 2013 | 5 | 2 |
| 2014 | 3 | 6 |
| 2015 | 2 | 4 |
| 2016 | 6 | 4 |
| 2017 | 5 | 5 |
| 2018 | 3 | 2 |
| 2019 | 3 | 5 |
| 2020 | 3 | 2 |
| 2021 | 2 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 1 |
| 2025 | 2 | 5 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for simultaneously preparing alcohol-free wine and high-alcohol liquor24 Jun 2025US 12,338,420 B2Jiangsu Jiumo High-Tech Co., Ltd.
- Dehydration of a mixture containing a diol with high water content using optimized pervaporation process11 Feb 2025US 12,220,662 B2Sabic Global Technologies B.V.
- Method of generating clean syngas3 Sep 2024US 12,077,435 B2ThermoChem Recovery International, Inc.
- Method and apparatus for in situ product recovery2 Jul 2024US 12,023,630 B2Vito NV
- Method of producing a cooled syngas of improved quality19 Sep 2023US 11,760,631 B2ThermoChem Recovery International, Inc.
- Acid gas removal apparatus and acid gas removal method24 Sep 2026US 2026/0284580 A1Kabushiki Kaisha Toshiba
- Carbon dioxide capture system using a liquid desiccant, and methods thereof6 Aug 2026US 2026/0225026 A1
- Membrane separation device, membrane separation system, and method for operating membrane separation device25 Dec 2025US 2025/0387759 A1Nitto Denko Corporation
- Membrane separation system and method for operating membrane separation device9 Oct 2025US 2025/0312742 A1Nitto Denko Corporation
- Membrane separation and purification apparatus, and method thereof10 Jul 2025US 2025/0222405 A1Zhejiang Hymater New Materials Co., Ltd
Most cited
By later US patents
- Ethanol recovery process117US 7,732,173 B2Membrane Technology and Research, Inc. · 2010
- Process for washing semiconductor substrate with organic solvent82US 4,788,043 ATokuyama Soda Kabushiki Kaisha · 1988
- Separation process using pervaporation and dephlegmation80US 6,755,975 B2Membrane Technology and Research, Inc. · 2004
- Process for dewatering ethanol79US 7,399,892 B2Oxeno Olefinchemie GmbH · 2008
- Pervaporation composite membranes58US 7,604,746 B2McMaster University · 2009