B01D 61/40
Using emulsion-type membranes
Official title: using emulsion-type membranes
B01D61/40 (Using emulsion-type membranes) appears on 47 US grants and 11 published applications in this corpus.
Search patents in B01D- Granted patents
- 47
- Published applications
- 11
- Assignees
- 26
- Inventors
- 84
- Latest grant
- 16 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Enhanced emulsion liquid membranes for extraction of pollutants from water16 May 2023US 11,648,512 B2The Curators of the University of Missouri
- Modified filter membrane and the use thereof30 Nov 2021US 11,185,827 B2Boehringer Ingelheim Vetmedica GmbH
- Method of operating membrane filter29 Jun 2021US 11,045,768 B2Fibracast Ltd.
- Method for preparation of sugammadex sodium19 Mar 2019US 10,233,263 B1Formosa Laboratories, Inc.
- Nanoparticle and gelation stabilized functional composites of an ionic salt in a hydrophobic polymer matrix22 Nov 2016US 9,499,715 B2Koc Universitesi
- Method of extracting and separating gallium by emulsion liquid membrane17 Apr 2025US 2025/0122089 A1Bgrimm Technology Group
- Enhanced emulsion liquid membranes for extraction of pollutants from water29 Apr 2021US 2021/0121825 A1The Curators of the University of Missouri
- Method for preparation of sugammadex sodium28 Feb 2019US 2019/0062459 A1Formosa Laboratories, Inc.
- Modified filter membrane and the use thereof17 Jan 2019US 2019/0015790 A1Boehringer Ingelheim Vetmedica GmbH
- Method of operating membrane filter6 Apr 2017US 2017/0095773 A1Fibracast Ltd.
Most cited
By later US patents
- Liquid membrane generator90US 4,201,691 AExxon Research & Engineering Co. · 1980
- Liquid membrane capsule systems resistant to coalescence by means of an irreversible coating76US 4,244,816 AExxon Research & Engineering Co. · 1981
- Microencapsulated chelating agents and their use in removing metal ions from aqueous solutions43US 4,500,494 AStauffer Chemical Company · 1985
- Detersive system with an improved hardness ion complexing agent42US 4,971,714 AEcolab Inc. · 1990
- Liquid/liquid extraction/purification of impure solutions of rare earth values31US 4,726,938 ARhone-Poulenc Specialites Chimiques · 1988