B01D 2257/704
Solvents not covered by groups b01d2257/702 - b01d2257/7027
Official title: Solvents not covered by groups B01D2257/702 - B01D2257/7027
B01D2257/704 (Solvents not covered by groups b01d2257/702 - b01d2257/7027) appears on 161 US grants and 171 published applications in this corpus.
Search patents in B01D- Granted patents
- 161
- Published applications
- 171
- Assignees
- 165
- Inventors
- 504
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 3 |
| 2005 | 2 | 3 |
| 2006 | 2 | 5 |
| 2007 | 3 | 5 |
| 2008 | 2 | 3 |
| 2009 | 3 | 3 |
| 2010 | 4 | 8 |
| 2011 | 3 | 11 |
| 2012 | 3 | 12 |
| 2013 | 10 | 6 |
| 2014 | 7 | 10 |
| 2015 | 11 | 10 |
| 2016 | 4 | 5 |
| 2017 | 6 | 12 |
| 2018 | 5 | 10 |
| 2019 | 11 | 7 |
| 2020 | 10 | 10 |
| 2021 | 5 | 12 |
| 2022 | 6 | 7 |
| 2023 | 6 | 6 |
| 2024 | 6 | 5 |
| 2025 | 3 | 8 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mobile refrigeration unit31 Mar 2026US 12,589,351 B2Voltagrid LLC
- Device for removing volatile organic compounds24 Feb 2026US 12,558,650 B2
- Sorbent indoor air purifier30 Sep 2025US 12,427,456 B2
- Sol-gel material absorbing aldehydes and ketones, and the process for its preparation20 May 2025US 12,303,867 B2Seb S. A.
- Preparation method of photo catalyst by transition metal halide molten salt and use thereof21 Jan 2025US 12,202,736 B2Linyi University
- Integration of ethanol production with co2 compression and dehydration27 Aug 2026US 2026/0249235 A1POET Research, Inc.
- Apparatus for intense/rapid cooling and for removing a substance in suspension in a gaseous fluid and method thereof13 Aug 2026US 2026/0233122 A1Snf Group
- Coated nonwoven article derived from porous polymeric fibers and methods thereof13 Aug 2026US 2026/0234865 A13M Innovative Properties Company
- Solvent recovery apparatus23 Jul 2026US 2026/0208095 A1Taikisha Ltd.
- Mobile refrigeration unit16 Jul 2026US 2026/0199825 A1Voltagrid LLC
Most cited
By later US patents
- Composite adsorbent and process for producing same104US 5,231,063 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- Bulk gas sorption and apparatus, gas containment/treatment system comprising same, and sorbent composition therefor81US 5,151,395 ANovapure Corporation · 1992
- Method and apparatus for separating and recovering volatile solvents from exhaust air51US 4,846,852 AOtto Oeko-Tech GmbH & Co KG · 1989
- Process and equipment for the treatment and recovery of solvent vapors by recycling on active charcoal49US 4,859,216 AAmeg France · 1989
- Organic-solvent vapor adsorbing apparatus45US 5,584,916 ANichias Corporation · 1996