B01J 2220/52
Sorbents specially adapted for preparative chromatography
B01J2220/52 (Sorbents specially adapted for preparative chromatography) appears on 177 US grants and 243 published applications in this corpus.
Search patents in B01J- Granted patents
- 177
- Published applications
- 243
- Assignees
- 170
- Inventors
- 568
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 10 |
| 2003 | 6 | 6 |
| 2004 | 7 | 8 |
| 2005 | 3 | 5 |
| 2006 | 3 | 9 |
| 2007 | 6 | 5 |
| 2008 | 3 | 3 |
| 2009 | 1 | 4 |
| 2010 | 2 | 8 |
| 2011 | 2 | 5 |
| 2012 | 2 | 6 |
| 2013 | 5 | 4 |
| 2014 | 5 | 12 |
| 2015 | 5 | 6 |
| 2016 | 7 | 8 |
| 2017 | 7 | 18 |
| 2018 | 7 | 10 |
| 2019 | 8 | 26 |
| 2020 | 14 | 16 |
| 2021 | 17 | 17 |
| 2022 | 8 | 14 |
| 2023 | 16 | 9 |
| 2024 | 9 | 16 |
| 2025 | 16 | 14 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Use of hulless barley grass extract in controlling colorectal cancer and ulcerative colitis15 Jan 2026US 2026/0014225 A1Shanghai Aifa Investment Management Co., Ltd.
- Mixed mode subtractive anion exchange chromatography ligands based on 4-(2-(dimethylamino)ethoxy)aniline structures27 Nov 2025US 2025/0361265 A1Bio-Rad Laboratories, Inc.
- Separation of bacl2 from cacl2 brine solution20 Nov 2025US 2025/0353755 A1The Chemours Company Fc, LLC
Most cited
By later US patents
- Imprint-coating synthesis of selective functionalized ordered mesoporous sorbents for separation and sensors251US 6,251,280 B1The University of Tennessee Research Corporation · 2001
- Porous inorganic/organic hybrid particles for chromatographic separations and process for their preparation94US 6,686,035 B2Waters Investments Limited · 2004
- Method for producing porous inorganic materials49US 6,207,098 B1Merck Patent GmbH · 2001
- Module with membrane elements in cross-flow and in a dead-end arrangement43US 6,866,783 B2MAT Adsorption Technologies GmbH & Co. KG · 2005
- Copolymers of (a) aminimides and (b) vinyl pendant primary halomethy monomers useful for affinity chromatography39US 4,162,355 ABoard of Regents, for and on behalf of the University of Florida · 1979