B01D 15/34
Size-selective separation
Official title: Size-selective separation, e.g. size-exclusion chromatography; Gel filtration; Permeation
B01D15/34 (Size-selective separation) appears on 352 US grants and 480 published applications in this corpus.
Search patents in B01D- Granted patents
- 352
- Published applications
- 480
- Assignees
- 293
- Inventors
- 1,194
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 7 |
| 2003 | 10 | 14 |
| 2004 | 6 | 14 |
| 2005 | 5 | 7 |
| 2006 | 4 | 11 |
| 2007 | 2 | 2 |
| 2008 | 4 | 11 |
| 2009 | 3 | 10 |
| 2010 | 2 | 18 |
| 2011 | 6 | 6 |
| 2012 | 13 | 10 |
| 2013 | 7 | 8 |
| 2014 | 6 | 18 |
| 2015 | 4 | 18 |
| 2016 | 9 | 15 |
| 2017 | 14 | 21 |
| 2018 | 12 | 24 |
| 2019 | 19 | 33 |
| 2020 | 17 | 32 |
| 2021 | 24 | 30 |
| 2022 | 18 | 41 |
| 2023 | 17 | 35 |
| 2024 | 25 | 29 |
| 2025 | 23 | 32 |
| 2026 | 19 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Column comprising particles6 Oct 2026US 12,752,220 B2Agilent Technologies, Inc.
- Methods of characterizing and purifying VEGF receptor fusion protein25 Aug 2026US 12,715,905 B2Regeneron Pharmaceuticals, Inc.
- Integrated dual-mode chromatography to enrich extracellular vesicles from plasma9 Jun 2026US 12,649,116 B2The General Hospital Corporation
- Automated group separations of complex mixtures with gel filtration pipette tips19 May 2026US 12,629,610 B2Dpx Technologies, Inc.
- Method of analysis of polynucleotides by restricted access reversed phase chromatography19 May 2026US 12,629,660 B2Waters Technologies Corporation
- 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.
- Antimicrobial defensin peptide folding variants1 Oct 2026US 2026/0297145 A1Donald Danforth Plant Science Center
- Methods for analyzing chain mispairing in multispecific binding proteins1 Oct 2026US 2026/0298942 A1Sanofi
- A method for purification of extracellular vesicles or enveloped viruses by means of size exclusion chromatography24 Sep 2026US 2026/0285901 A1Cytiva BioProcess R&D AB
- Method for producing the subunits of human interleukin 35 from interleukin 12 and interleukin 2724 Sep 2026US 2026/0285930 A1Technische Universitaet Muenchen, in Vertretung des Freistaates Bayern
Most cited
By later US patents
- Support for high performance affinity chromatography and other uses216US 6,277,489 B1The Regents of the University of California · 2001
- High-temperature characterization of polymers181US 6,260,407 B1Symyx Technologies, Inc. · 2001
- Indirect calibration of polymer characterization systems118US 6,294,388 B1Symyx Technologies, Inc. · 2001
- Composite materials comprising supported porous gels116US 7,316,919 B2Nysa Membrane Technologies · 2008
- Gel-in-matrix containing a fractured hydrogel96US 5,277,915 AFMC Corporation · 1994