B01D 15/361
Ion-exchange
Official title: {Ion-exchange}
B01D15/361 (Ion-exchange) appears on 1,281 US grants and 1,884 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,281
- Published applications
- 1,884
- Assignees
- 924
- Inventors
- 4,058
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 12 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 11 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 11 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 12 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 3 |
| 2002 | 17 | 10 |
| 2003 | 15 | 23 |
| 2004 | 10 | 31 |
| 2005 | 15 | 41 |
| 2006 | 18 | 32 |
| 2007 | 13 | 34 |
| 2008 | 18 | 27 |
| 2009 | 8 | 42 |
| 2010 | 23 | 40 |
| 2011 | 17 | 38 |
| 2012 | 31 | 53 |
| 2013 | 29 | 50 |
| 2014 | 39 | 68 |
| 2015 | 44 | 88 |
| 2016 | 51 | 101 |
| 2017 | 63 | 125 |
| 2018 | 67 | 108 |
| 2019 | 79 | 126 |
| 2020 | 101 | 121 |
| 2021 | 91 | 127 |
| 2022 | 78 | 142 |
| 2023 | 89 | 119 |
| 2024 | 84 | 125 |
| 2025 | 73 | 122 |
| 2026 | 47 | 88 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Copper-64 compositions and purification processes for the preparation of novel copper-64 compositions15 Sep 2026US 12,735,327 B2Curium US LLC
- System and method for capturing carbon dioxide from a humidity adjusted air stream1 Sep 2026US 12,722,118 B2
- Chemical additives for direct air carbon capture25 Aug 2026US 12,714,966 B2Halliburton Energy Services.Inc.
- Formulations and processes for treating water from impacted sources25 Aug 2026US 12,714,991 B2Brown University
- Pure water systems25 Aug 2026US 12,715,790 B2Unger Marketing International, LLC
- Two-in-one chromatography systems for use with small volume samples and with automated liquid handlers8 Oct 2026US 2026/0306967 A1Integrated Micro-Chromatography Systems, Inc.
- Process for preparing extracellular vesicles1 Oct 2026US 2026/0295460 A1Lonza Sales AG
- Novel materials and methods for refining processes17 Sep 2026US 2026/0273436 A1Lihme Protein Solutions ApS
- Bio-inspired nanocoating and the use thereof17 Sep 2026US 2026/0273510 A1The Penn State Research Foundation
- Methods of reducing the enzymatic hydrolysis activity rate in a composition obtained from a purification platform17 Sep 2026US 2026/0274889 A1Genentech, Inc.
Most cited
By later US patents
- Modified siliceous chromatographic supports159US 4,724,207 ACuno Incorporated · 1988
- Antibody purification154US 5,429,746 ASmith Kline Beecham Corporation · 1995
- Polymerization processes and products therefrom125US 4,224,415 ARohm and Haas Company · 1980
- Process for preparing macroreticular resins, copolymers and products of said process123US 4,382,124 ARohm and Haas Company · 1983
- Composite materials comprising supported porous gels116US 7,316,919 B2Nysa Membrane Technologies · 2008