B01J 20/281
Sorbents specially adapted for preparative, analytical or investigative chromatography
B01J20/281 (Sorbents specially adapted for preparative, analytical or investigative chromatography) appears on 2,214 US grants and 2,409 published applications in this corpus.
Search patents in B01J- Granted patents
- 2,214
- Published applications
- 2,409
- Assignees
- 1,126
- Inventors
- 5,110
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 15 | 0 |
| 1978 | 14 | 0 |
| 1979 | 10 | 0 |
| 1980 | 16 | 0 |
| 1981 | 14 | 0 |
| 1982 | 15 | 0 |
| 1983 | 21 | 0 |
| 1984 | 12 | 0 |
| 1985 | 18 | 0 |
| 1986 | 11 | 0 |
| 1987 | 23 | 0 |
| 1988 | 28 | 0 |
| 1989 | 33 | 0 |
| 1990 | 33 | 0 |
| 1991 | 39 | 0 |
| 1992 | 42 | 0 |
| 1993 | 29 | 0 |
| 1994 | 34 | 0 |
| 1995 | 24 | 0 |
| 1996 | 31 | 0 |
| 1997 | 51 | 0 |
| 1998 | 38 | 0 |
| 1999 | 45 | 0 |
| 2000 | 37 | 0 |
| 2001 | 27 | 17 |
| 2002 | 40 | 52 |
| 2003 | 42 | 62 |
| 2004 | 47 | 96 |
| 2005 | 26 | 102 |
| 2006 | 50 | 114 |
| 2007 | 53 | 96 |
| 2008 | 54 | 102 |
| 2009 | 39 | 115 |
| 2010 | 60 | 122 |
| 2011 | 52 | 75 |
| 2012 | 59 | 77 |
| 2013 | 52 | 93 |
| 2014 | 75 | 109 |
| 2015 | 76 | 101 |
| 2016 | 83 | 104 |
| 2017 | 71 | 94 |
| 2018 | 74 | 119 |
| 2019 | 79 | 125 |
| 2020 | 95 | 104 |
| 2021 | 86 | 115 |
| 2022 | 73 | 96 |
| 2023 | 79 | 85 |
| 2024 | 62 | 97 |
| 2025 | 74 | 85 |
| 2026 | 41 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Column comprising particles6 Oct 2026US 12,752,220 B2Agilent Technologies, Inc.
- Isolation and analysis of terpenes6 Oct 2026US 12,754,110 B2Orange Photonics, Inc.
- Method of characterizing a sorbent29 Sep 2026US 12,746,531 B2Calgon Carbon Corporation
- Channeled fibers in separation of biologically active nanoparticles22 Sep 2026US 12,741,234 B2Clemson University Research Foundation
- Chelator based eluents for solid phase extraction of phosphorylated compounds8 Sep 2026US 12,730,040 B2Waters Technologies Corporation
- Process for using modified dtpa-associated organosilica media for producing individually separated high purity rare earth elements8 Oct 2026US 2026/0308717 A1Wayne State University
- Separation Matrix and a Method of Separating Antibodies1 Oct 2026US 2026/0295462 A1Cytiva BioProcess R&D AB
- Immunoglobulin-binding protein1 Oct 2026US 2026/0297140 A1Tosoh Corporation
- Lymph directing prodrugs24 Sep 2026US 2026/0284004 A1Monash University
- Novel materials and methods for refining processes17 Sep 2026US 2026/0273436 A1Lihme Protein Solutions ApS
Most cited
By later US patents
- Magnetic particles for use in separations333US 4,554,088 AAdvanced Magnetics, Inc. · 1985
- Use of retentate chromatography to generate difference maps229US 6,225,047 B1Ciphergen Biosystems, Inc. · 2001
- Support for high performance affinity chromatography and other uses216US 6,277,489 B1The Regents of the University of California · 2001
- Selective recognition of solutes in chromatographic media by artificially created affinity206US 5,916,445 ABio-Rad Laboratories, Inc. · 1999
- Calcium phosphate microcarriers and microspheres198US 6,210,715 B1CaP Biotechnology, Inc. · 2001