B01D 3/146
Multiple effect distillation
Official title: {Multiple effect distillation}
B01D3/146 (Multiple effect distillation) appears on 343 US grants and 272 published applications in this corpus.
Search patents in B01D- Granted patents
- 343
- Published applications
- 272
- Assignees
- 206
- Inventors
- 819
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 10 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 16 | 6 |
| 2002 | 9 | 1 |
| 2003 | 6 | 8 |
| 2004 | 5 | 20 |
| 2005 | 7 | 14 |
| 2006 | 5 | 9 |
| 2007 | 14 | 17 |
| 2008 | 8 | 12 |
| 2009 | 7 | 11 |
| 2010 | 6 | 12 |
| 2011 | 10 | 5 |
| 2012 | 6 | 5 |
| 2013 | 5 | 2 |
| 2014 | 9 | 11 |
| 2015 | 9 | 15 |
| 2016 | 3 | 1 |
| 2017 | 3 | 10 |
| 2018 | 13 | 13 |
| 2019 | 17 | 26 |
| 2020 | 25 | 22 |
| 2021 | 16 | 14 |
| 2022 | 12 | 13 |
| 2023 | 9 | 9 |
| 2024 | 6 | 3 |
| 2025 | 4 | 8 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat integrated process and system for organic solvent production using vapor recompression10 Feb 2026US 12,544,686 B2Whitefox Technologies Limited
- Equipment for production of butanol and octanol and triple-effect distillation method13 Jan 2026US 12,521,644 B2Tianjin Shenlan Chemical Technology Co., Ltd
- Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials25 Nov 2025US 12,480,255 B2Pierson Capital Environmental (Beijing) Limited
- Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials30 Sep 2025US 12,428,785 B2Pierson Capital Environmental (Beijing) Limited
- Waste water management22 Jul 2025US 12,365,600 B2Nouvel Technologies, Inc.
- Process and system for dehydrating a product stream in ethanol production10 Sep 2026US 2026/0263961 A1Whitefox Technologies Limited
- Heat integrated process and system for organic solvent production using vapor recompression20 Aug 2026US 2026/0241306 A1Whitefox Technologies Limited
- A geothermal hydrogen production and compression system20 Aug 2026US 2026/0242246 A1Good Water Energy Ltd.
- A plate heat exchanger, a heat exchanging plate and a method of treating a feed such as sea water6 Aug 2026US 2026/0225920 A1Alfa Laval Corporate AB
- Method for producing purified 1,1,2-trifluoroethane (hfc-143), and composition containing hfc-14325 Jun 2026US 2026/0176222 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Distillation process for ethanol209US 5,124,004 ATrustees of Dartmouth College · 1992
- Method of purifying eicosapentaenoic acid or the ester derivative thereof by fractional distillation156US 5,215,630 AKansai Chemical Engineering Co., Ltd. · 1993
- Hydrous alcohol distillation method and apparatus148US 4,306,942 ARaphael Katzen Associates International, Inc. · 1981
- Process for separating alcohols from mixtures of alcohols, water and other compounds132US 5,449,440 ASNAMPROGETTI S.p. A. · 1995
- Distillative separations of gas mixtures containing methane, carbon dioxide and other components129US 4,462,814 AKoch Process Systems, Inc. · 1984