G01N 30/0005
Field flow fractionation
Official title: {Field flow fractionation}
G01N30/0005 (Field flow fractionation) appears on 202 US grants and 185 published applications in this corpus.
Search patents in G01N- Granted patents
- 202
- Published applications
- 185
- Assignees
- 116
- Inventors
- 397
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 9 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 2 |
| 2002 | 6 | 6 |
| 2003 | 6 | 8 |
| 2004 | 9 | 9 |
| 2005 | 2 | 10 |
| 2006 | 9 | 8 |
| 2007 | 6 | 8 |
| 2008 | 6 | 9 |
| 2009 | 6 | 5 |
| 2010 | 3 | 5 |
| 2011 | 6 | 11 |
| 2012 | 13 | 10 |
| 2013 | 9 | 5 |
| 2014 | 6 | 4 |
| 2015 | 5 | 3 |
| 2016 | 1 | 7 |
| 2017 | 2 | 6 |
| 2018 | 5 | 4 |
| 2019 | 2 | 9 |
| 2020 | 4 | 11 |
| 2021 | 4 | 19 |
| 2022 | 11 | 8 |
| 2023 | 9 | 5 |
| 2024 | 9 | 8 |
| 2025 | 6 | 4 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Regulating a channel temperature of a field flow fractionator6 Oct 2026US 12,754,170 B2Wyatt Technology Corporation
- Electrical field flow fractionator26 May 2026US 12,636,614 B2Wyatt Technology Corporation
- Analysis system20 Jan 2026US 12,529,640 B2Shimadzu Corporation
- Centrifugal field-flow fractionation device25 Nov 2025US 12,478,983 B2Shimadzu Corporation
- Centrifugal field flow fractionation device25 Nov 2025US 12,478,984 B2Shimadzu Corporation
- Field-flow fractionation device6 Aug 2026US 2026/0227368 A1Shimadzu Corporation
- Field flow fractionation channel assembly seals4 Dec 2025US 2025/0367606 A1
- Coatings for field flow fractionation channels to reduce sample sticking4 Dec 2025US 2025/0367608 A1Wyatt Technology Corporation
- Dilution control for field flow fractionation channel4 Dec 2025US 2025/0369933 A1
- Field flow fractionation and size-exclusion chromatography switching13 Nov 2025US 2025/0347663 A1Wyatt Technology Corporation
Most cited
By later US patents
- Microfabricated differential extraction device and method417US 5,932,100 AUniversity of Washington · 1999
- Microfabricated diffusion-based chemical sensor360US 5,716,852 AUniversity of Washington · 1998
- Microfabricated diffusion-based chemical sensor290US 5,972,710 AUniversity of Washington · 1999
- Systems and methods for cell subpopulation analysis235US 6,790,330 B2Board of Regents, The University of Texas System · 2004
- Simultaneous analyte determination and reference balancing in reference T-sensor devices226US 5,948,684 AUniversity of Washington · 1999