B01J 20/3071
Washing or leaching
Official title: {Washing or leaching}
B01J20/3071 (Washing or leaching) appears on 320 US grants and 425 published applications in this corpus.
Search patents in B01J- Granted patents
- 320
- Published applications
- 425
- Assignees
- 357
- Inventors
- 1,424
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 9 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 2 |
| 2004 | 0 | 5 |
| 2005 | 3 | 5 |
| 2006 | 1 | 5 |
| 2007 | 2 | 5 |
| 2008 | 1 | 1 |
| 2009 | 2 | 3 |
| 2010 | 2 | 2 |
| 2011 | 1 | 3 |
| 2012 | 2 | 2 |
| 2013 | 1 | 4 |
| 2014 | 4 | 12 |
| 2015 | 3 | 25 |
| 2016 | 10 | 21 |
| 2017 | 19 | 24 |
| 2018 | 22 | 25 |
| 2019 | 18 | 29 |
| 2020 | 18 | 26 |
| 2021 | 18 | 31 |
| 2022 | 24 | 28 |
| 2023 | 28 | 37 |
| 2024 | 35 | 46 |
| 2025 | 41 | 49 |
| 2026 | 15 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- M-xylene adsorbent and preparation method therefor6 Oct 2026US 12,752,253 B2China Petroleum & Chemical Corporation
- Adsorbent, method for manufacturing the same, adsorption sheet, artificial dialysis membrane, and artificial dialyzer15 Sep 2026US 12,734,484 B2Murata Manufacturing Co., Ltd.
- Method for preparing lithium extraction absorbent and its application1 Sep 2026US 12,722,138 B2Harbin Institute of Technology
- Polymeric sorbents for aldehydes and methods of making1 Sep 2026US 12,722,139 B23M Innovative Properties Company
- Method for improving lithium yield in a direct lithium extraction process11 Aug 2026US 12,702,987 B2Aquatech International Corporation
- Method for carbon dioxide sequestration with mof10 Sep 2026US 2026/0264045 A1King Fahd University of Petroleum and Minerals
- Porous monolithic polymer for separation and purification of biological particles, method for production of porous monolithic polymer for separation and purification of biological particles, and method for separation and purification of biological particles composed of phospholipids using porous monolithic polymer for separation and purification of biological particles10 Sep 2026US 2026/0264047 A1Glory Industry Co., Ltd.
- Method for preparing a crystalline porous aluminum tetracarboxylate of mof type, and uses thereof3 Sep 2026US 2026/0257196 A1Centre National De La Recherche Scientifique
- Crystalline aluminoborates, their method of preparation and use13 Aug 2026US 2026/0233194 A1Uop LLC
- Zeolitic adsorbent for high productivity xylene separation30 Jul 2026US 2026/0216691 A1
Most cited
By later US patents
- Preparation of trichloro-s-triazine activated supports for coupling ligands276US 4,229,537 ANew York University · 1980
- Method of covalently binding biologically active organic substances to polymeric substances90US 4,415,665 APharmacia Fine Chemicals AB · 1983
- Substrates with sterically-protected, stable, covalently-bonded organo-silane films80US 4,705,725 AE. I. Du Pont de Nemours and Company · 1987
- Process for the chemical modification of surfaces of inorganic solids63US 3,956,179 A1976
- Method for attaching microspheres to a substrate54US 5,652,059 ABar-Ilan University · 1997