B01D 3/101
Recirculation of the fluid used as fluid working medium in a vacuum
Official title: {Recirculation of the fluid used as fluid working medium in a vacuum creating device}
B01D3/101 (Recirculation of the fluid used as fluid working medium in a vacuum) appears on 14 US grants and 13 published applications in this corpus.
Search patents in B01D- Granted patents
- 14
- Published applications
- 13
- Assignees
- 16
- Inventors
- 54
- Latest grant
- 4 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Process and plant for recycling fabrics7 Dec 2023US 2023/0392297 A1Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
- Vacuum rectification tower with satellite-type tower kettle and vacuum rectification method for atmospheric pressure residual oil29 Sep 2022US 2022/0305400 A1Beijing Jiesenchuangxin Sciences&Technology Development Co. Ltd.
- Method and apparatus for effective preparation of trifluoroamine oxide18 Feb 2021US 2021/0047184 A1Korea Research Institute of Chemical Technology
- Cleaning and Fluid Distillation Apparatus1 Oct 2020US 2020/0306661 A1Uni-Ram Corporation
Most cited
By later US patents
- Method for vacuum distillation of a liquid product and an equipment for performing thereof23US 5,980,698 AValery Grigorievich Tsegelsky · 1999
- Vacuum distillation apparatus and method with pretreatment22US 4,985,122 AVaqua Limited · 1991
- Rectification system for the separation of fluids15US 4,023,946 A1977
- Refrigeration type water desalinisation units12US 4,181,577 AAuscoteng Pty. Ltd. · 1980
- Apparatus for concentrating waste liquid9US 5,770,019 AKonica Corporation · 1998