G01N 2030/382
Flow switching in a single column
Official title: {flow switching in a single column}
G01N2030/382 (Flow switching in a single column) appears on 109 US grants and 78 published applications in this corpus.
Search patents in G01N- Granted patents
- 109
- Published applications
- 78
- Assignees
- 67
- Inventors
- 206
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 1 |
| 2003 | 0 | 6 |
| 2004 | 1 | 6 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 4 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 3 |
| 2015 | 1 | 3 |
| 2016 | 2 | 2 |
| 2017 | 2 | 0 |
| 2018 | 2 | 5 |
| 2019 | 3 | 1 |
| 2020 | 2 | 6 |
| 2021 | 2 | 10 |
| 2022 | 6 | 6 |
| 2023 | 7 | 10 |
| 2024 | 7 | 2 |
| 2025 | 7 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Monitoring analysis device and monitoring analysis method6 Oct 2026US 12,754,173 B2Shimadzu Corporation
- Automatic analyzer including HPLC and control method for the same21 Jul 2026US 12,687,528 B2Hitachi High-Tech Corporation
- Preparative separation and purification device and preparative separation and purification method31 Mar 2026US 12,590,933 B2Shimadzu Corporation
- State determination of a fluidic system12 Aug 2025US 12,385,885 B2Dionex Softron GmbH
- Liquid chromatograph15 Jul 2025US 12,360,088 B2Shimadzu Corporation
- Systems and methods for sample analysis21 May 2026US 2026/0140095 A1Agilent Technologies, Inc.
- State determination of a fluidic system1 Jan 2026US 2026/0002916 A1Dionex Softron GmbH
- Fractionating Liquid Chromatograph and Control Method Therefor6 Feb 2025US 2025/0041761 A1Shimadzu Corporation
- Liquid Chromatograph and Liquid Delivery Method27 Jun 2024US 2024/0210364 A1Hitachi High-Tech Corporation
- Automatic analyzer including hplc and control method for the same13 Jun 2024US 2024/0192180 A1Hitachi High-Tech Corporation
Most cited
By later US patents
- Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis396US 5,858,195 ALockheed Martin Energy Research Corporation · 1999
- Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis382US 6,033,546 ALockheed Martin Energy Research Corporation · 2000
- Apparatus and method for performing microfluidic manipulations for chemical analysis369US 6,001,229 ALockheed Martin Energy Systems, Inc. · 1999
- Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis350US 6,010,607 ALockheed Martin Energy Research Corporation · 2000
- Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis198US 6,010,608 ALockheed Martin Energy Research Corporation · 2000