B01J 49/20
Regeneration or reactivation of ion-exchangers: of membranes
Official title: of membranes
B01J49/20 (Regeneration or reactivation of ion-exchangers: of membranes) appears on 10 US grants and 11 published applications in this corpus.
Search patents in B01J- Granted patents
- 10
- Published applications
- 11
- Assignees
- 13
- Inventors
- 31
- Latest grant
- 11 May 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Electrochemical ion exchange treatment of fluids11 May 2021US 11,001,511 B2Erix Solutions Corporation
- Methods of regenerating a resin used to decolorize a biomass feedstream and related systems4 Feb 2020US 10,549,238 B2Amalgamated Research, Inc.
- Method for recirculating a reprocessing effluent comprising chloride ions8 May 2018US 9,962,658 B2Eurodia Industrie
- Ion exchanger, water treatment device provided with same, and hot water supply device11 Jul 2017US 9,701,547 B2Panasonic Intellectual Property Management Co., Ltd.
- Sulphur-containing and sulphonated aromatic perfluoroalkane monomer8 Sep 2015US 9,126,907 B2Compagnie Generale Des Etablissements Michelin
- Method and device for dc-voltage-controlled adsorption and desorption on charged membranes28 Aug 2025US 2025/0269353 A1i3 Membrane GmbH
- Method for recycling ion conducting membranes8 May 2025US 2025/0144576 A1Battelle Memorial Institute
- Method and device for dc-voltage-controlled adsorption and desorption on charged membranes17 Nov 2022US 2022/0362745 A1i3 Membrane GmbH
- Removing metal ions with a membrane based on anionic polyarylene ethersulfone and a cationic polymer with amino groups17 Jun 2021US 2021/0178342 A1Dupont Safety & Construction, Inc.
- Electrochemical Ion Exchange Treatment of Fluids13 Dec 2018US 2018/0354820 A1Erix Solutions Corporation
Most cited
By later US patents
- Continuously rejuvenated ion exchanger21US 4,500,430 A1985
- Annular dual membrane permselective device and method18US 4,647,380 A1987
- Ion exchange process and apparatus10US 4,591,439 AE. I. Du Pont de Nemours and Company · 1986
- Method of regenerating electrochemical properties of cation exchange membrane of fluorinated polymer5US 4,115,240 AAsahi Glass Company, Limited · 1978
- Sulphur-containing and sulphonated aromatic perfluoroalkane monomer2US 9,126,907 B2Compagnie Generale Des Etablissements Michelin · 2015