B01D 9/04
Concentrating solutions by removing frozen solvent therefrom
Official title: concentrating solutions by removing frozen solvent therefrom
B01D9/04 (Concentrating solutions by removing frozen solvent therefrom) appears on 84 US grants and 33 published applications in this corpus.
Search patents in B01D- Granted patents
- 84
- Published applications
- 33
- Assignees
- 54
- Inventors
- 149
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 5 |
| 2018 | 2 | 4 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 5 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Freeze concentration for urine-based fertilizer production29 Sep 2026US 12,747,194 B2The Regents of the University of Michigan
- Freeze concentration for urine-based fertilizer production14 Feb 2023US 11,578,011 B2The Regents of the University of Michigan
- Method for preparing adrenochrome by catalytic oxidation using nitrogen-doped carbon nanotubes23 Aug 2022US 11,420,939 B2Peking University
- Solid-liquid distribution detection apparatus30 Nov 2021US 11,187,678 B2Meiji Co., Ltd.
- Recovery of lactose from an aqueous solution16 Nov 2021US 11,174,523 B2Cool Separations B.V.
- Method and system for purification of feed liquid15 Jan 2026US 2026/0015256 A1Oy Infraconsulting AB Ltd
- Freeze concentration for urine-based fertilizer production29 Jun 2023US 2023/0202940 A1The Regents of the University of Michigan
- Method for preparing adrenochrome by catalytic oxidation using nitrogen-doped carbon nanotubes19 Aug 2021US 2021/0253526 A1Peking University
- Solid-liquid distribution detecting apparatus24 Jun 2021US 2021/0190732 A1Meiji Co., Ltd.
- System and method for substance extraction24 Dec 2020US 2020/0398182 A1Aftermath Labs LLC
Most cited
By later US patents
- Three phase separation process41US 5,167,838 A1992
- Triple-point heat pump32US 4,003,213 A1977
- Distillative freezing process for separating volatile mixtures and apparatuses for use therein25US 4,451,273 A1984
- Freeze concentration system and method23US 4,830,645 ANestec S. A. · 1989
- Simultaneous regasification of liquefied natural gas and desalination22US 7,458,231 B1Uop LLC · 2008