G01N 30/468
Involving switching between different column configurations
Official title: {involving switching between different column configurations}
G01N30/468 (Involving switching between different column configurations) appears on 198 US grants and 212 published applications in this corpus.
Search patents in G01N- Granted patents
- 198
- Published applications
- 212
- Assignees
- 125
- Inventors
- 434
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 9 |
| 2003 | 7 | 4 |
| 2004 | 3 | 10 |
| 2005 | 4 | 10 |
| 2006 | 4 | 2 |
| 2007 | 4 | 4 |
| 2008 | 3 | 9 |
| 2009 | 4 | 10 |
| 2010 | 8 | 6 |
| 2011 | 5 | 6 |
| 2012 | 9 | 4 |
| 2013 | 5 | 8 |
| 2014 | 4 | 10 |
| 2015 | 6 | 7 |
| 2016 | 6 | 12 |
| 2017 | 5 | 12 |
| 2018 | 6 | 11 |
| 2019 | 13 | 16 |
| 2020 | 7 | 6 |
| 2021 | 11 | 17 |
| 2022 | 7 | 10 |
| 2023 | 14 | 10 |
| 2024 | 8 | 6 |
| 2025 | 10 | 6 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automatic analyzer including HPLC and control method for the same21 Jul 2026US 12,687,528 B2Hitachi High-Tech Corporation
- Fluidic configuration for a multidimensional liquid chromatography system16 Jun 2026US 12,656,323 B2Waters Technologies Corporation
- Systems and methods for two-dimensional liquid chromatography using size exclusion chromatography as a first dimension19 May 2026US 12,631,603 B2Waters Technologies Corporation
- Connection device for a separation system such as a chromatography system5 May 2026US 12,616,918 B2Cytiva Sweden AB
- Multi-column chromatography systems with rotatable valve assemblies14 Apr 2026US 12,599,851 B2Life Technologies Corporation
- Connection Device for a Separation System such as a Chromatography System20 Aug 2026US 2026/0241308 A1Cytiva Sweden AB
- Multi-column chromatography systems with rotatable valve assemblies20 Aug 2026US 2026/0241309 A1Life Technologies Corporation
- Fractionation method and fractionation apparatus30 Jul 2026US 2026/0219241 A1Shimadzu Corporation
- Selection valve2 Jul 2026US 2026/0185617 A1Inscinstech Co., Ltd.
- Systems and methods for two-dimensional chromatography22 Jan 2026US 2026/0023053 A1
Most cited
By later US patents
- High-throughput parallel liquid chromatography system76US 6,318,157 B1Advanced Bioanalytical Services, Inc. · 2001
- Protein chromatography system56US 6,344,172 B12002
- Chromatographic systems with pre-detector eluent switching56US 6,641,783 B12003
- Column chromatographic column apparatus with switching capability54US 5,071,547 ASeparations Technology, Inc. · 1991
- Flexible diaphragm controlled valve51US 4,353,243 AQuadrex Corporation · 1982