G01N 2030/202
Rotary valves
Official title: {rotary valves}
G01N2030/202 (Rotary valves) appears on 244 US grants and 274 published applications in this corpus.
Search patents in G01N- Granted patents
- 244
- Published applications
- 274
- Assignees
- 93
- Inventors
- 379
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 3 | 2 |
| 2006 | 5 | 9 |
| 2007 | 2 | 6 |
| 2008 | 1 | 4 |
| 2009 | 4 | 9 |
| 2010 | 3 | 13 |
| 2011 | 2 | 10 |
| 2012 | 13 | 7 |
| 2013 | 6 | 10 |
| 2014 | 8 | 20 |
| 2015 | 13 | 11 |
| 2016 | 14 | 20 |
| 2017 | 15 | 13 |
| 2018 | 12 | 15 |
| 2019 | 19 | 18 |
| 2020 | 15 | 19 |
| 2021 | 12 | 23 |
| 2022 | 19 | 14 |
| 2023 | 15 | 16 |
| 2024 | 21 | 13 |
| 2025 | 11 | 10 |
| 2026 | 11 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Loading a fluidic element11 Aug 2026US 12,704,121 B2Dionex Softron GmbH
- Fluidic system and corresponding method12 May 2026US 12,623,213 B2Dionex Softron GmbH
- Microfluidic component with metal layer stack and fluid conduit element made of another material bonded with it5 May 2026US 12,618,491 B2Agilent Technologies, Inc.
- Chemical species based selective dilution for analysis of a sub-formation sample21 Apr 2026US 12,607,611 B2Halliburton Energy Services.Inc.
- Multi-column chromatography systems with rotatable valve assemblies14 Apr 2026US 12,599,851 B2Life Technologies Corporation
- Multi-column chromatography systems with rotatable valve assemblies20 Aug 2026US 2026/0241309 A1Life Technologies Corporation
- Rotary valve6 Aug 2026US 2026/0226994 A1Shimadzu Corporation
- Selection valve2 Jul 2026US 2026/0185617 A1Inscinstech Co., Ltd.
- System for subjecting a sample to chromatographic analysis18 Jun 2026US 2026/0168968 A1Evosep Aps
- Injection valve19 Mar 2026US 2026/0079133 A1Inscinstech Co., Ltd.
Most cited
By later US patents
- Mobile phase gradient generation microfluidic device85US 7,138,062 B2Agilent Technologies, Inc. · 2006
- Mobile phase gradient generation microfluidic device82US 6,958,119 B2Agilent Technologies, Inc. · 2005
- High pressure sample injector valve76US 4,444,066 ABeckman Instruments, Inc. · 1984
- High-throughput parallel liquid chromatography system76US 6,318,157 B1Advanced Bioanalytical Services, Inc. · 2001
- Apparatus for multi-path flow regulation70US 5,105,851 AHewlett-Packard Company · 1992