B01D 59/22
Separation by extracting
B01D59/22 (Separation by extracting) appears on 61 US grants and 62 published applications in this corpus.
Search patents in B01D- Granted patents
- 61
- Published applications
- 62
- Assignees
- 56
- Inventors
- 176
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 3 |
| 2013 | 3 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 1 | 3 |
| 2017 | 2 | 2 |
| 2018 | 4 | 4 |
| 2019 | 4 | 3 |
| 2020 | 3 | 6 |
| 2021 | 4 | 5 |
| 2022 | 4 | 4 |
| 2023 | 4 | 3 |
| 2024 | 3 | 8 |
| 2025 | 2 | 7 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems, apparatus and methods for separating actinium, radium, and thorium28 Apr 2026US 12,614,645 B2The University of British Columbia
- Apparatus for production of lead-212 isotope24 Jun 2025US 12,340,915 B2
- Porous organic cages for quantum sieving4 Feb 2025US 12,214,314 B2The University of Liverpool
- Method for purifying 226Ra-containing solution, method for producing 226Ra target, and method for producing 225Ac31 Dec 2024US 12,179,149 B2Nihon Medi-Physics Co., Ltd.
- Isotopic compositions II26 Nov 2024US 12,151,207 B2Botanical Water Technologies IP Ltd
- Method and composition for liquid-liquid extraction17 Sep 2026US 2026/0275450 A1Molten Salt Solutions, LLC
- Separation column with variable geometry11 Jun 2026US 2026/0158417 A1Eczacibasi Monrol Nukleer Urunler Sanayi Ve Ticaret Anonim Sirketi
- Alkyl-substituted hydroxamate resin for use in a generator system9 Oct 2025US 2025/0312770 A1
- Apparatus for Production of Lead-212 Isotope18 Sep 2025US 2025/0292927 A1
- Method for separating, enriching and recovering of he-3 from he-4 and use of the separated, enriched and recovered he-311 Sep 2025US 2025/0281879 A1Gfz Helmholtz-Zentrum Fur Geoforschung Stiftung Des Offentlichen Rechts Des Landes Bradenburg
Most cited
By later US patents
- Packed column having pressure-absorbing mechanism32US 4,557,830 AAsahi Kasei Kogyo Kabushiki Kaisha · 1985
- Method for separating heavy isotopes of hydrogen oxide from water20US 6,348,153 B12002
- Hydrogen isotope separation utilizing bulk getters18US 4,976,938 AThe United States of America as represented by the United States Department of Energy · 1990
- Gas chromatographic method for separating hydrogen isotopes17US 4,732,581 A1988
- Method and device for rapid chromatographic separation12US 3,954,608 AEntreprise de Recherches et D'Activities Petrolieres Elf · 1976