G01N 2030/201
Multiport valves, i.e. having more than two ports
Official title: {multiport valves, i.e. having more than two ports}
G01N2030/201 (Multiport valves, i.e. having more than two ports) appears on 198 US grants and 224 published applications in this corpus.
Search patents in G01N- Granted patents
- 198
- Published applications
- 224
- Assignees
- 101
- Inventors
- 380
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 5 |
| 2003 | 2 | 2 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 5 | 5 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 2 | 10 |
| 2011 | 1 | 9 |
| 2012 | 7 | 5 |
| 2013 | 6 | 7 |
| 2014 | 4 | 6 |
| 2015 | 5 | 6 |
| 2016 | 4 | 9 |
| 2017 | 11 | 9 |
| 2018 | 5 | 17 |
| 2019 | 15 | 18 |
| 2020 | 13 | 17 |
| 2021 | 8 | 17 |
| 2022 | 21 | 17 |
| 2023 | 15 | 18 |
| 2024 | 15 | 16 |
| 2025 | 13 | 7 |
| 2026 | 17 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multiport gas chromatograph valve29 Sep 2026US 12,748,082 B2Rosemount Inc.
- Multiport gas chromatograph piston valve18 Aug 2026US 12,710,403 B2Rosemount Inc.
- Loading a fluidic element11 Aug 2026US 12,704,121 B2Dionex Softron GmbH
- Online analysis system14 Jul 2026US 12,680,985 B2Shimadzu Corporation
- Flow control assembly having localized non- volatile memory9 Jun 2026US 12,650,687 B2IDEX Health & Science LLC
- Analysis system for hydrocarbon components in ultrapure ammonia13 Aug 2026US 2026/0235559 A1Lansis Instrument (Shanghai) Co., Ltd
- Control disk for multiport valve with improved sealing characteristics, gas analyzer, simulating method and computer program product9 Jul 2026US 2026/0194495 A1Valmet Automation Oy
- Method of introducing a sample into a separation column and corresponding system9 Jul 2026US 2026/0194496 A1Dionex Softron GmbH
- Selection valve2 Jul 2026US 2026/0185617 A1Inscinstech Co., Ltd.
- System for subjecting a sample to chromatographic analysis18 Jun 2026US 2026/0168968 A1Evosep Aps
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
- Prime purge injection valve or multi-route selections valve71US 6,012,487 A2000
- Apparatus for multi-path flow regulation70US 5,105,851 AHewlett-Packard Company · 1992