G01N 30/22
In high pressure liquid systems
Official title: in high pressure liquid systems
G01N30/22 (In high pressure liquid systems) appears on 129 US grants and 133 published applications in this corpus.
Search patents in G01N- Granted patents
- 129
- Published applications
- 133
- Assignees
- 66
- Inventors
- 240
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 3 |
| 2004 | 2 | 3 |
| 2005 | 3 | 2 |
| 2006 | 0 | 2 |
| 2007 | 2 | 4 |
| 2008 | 3 | 1 |
| 2009 | 0 | 6 |
| 2010 | 0 | 4 |
| 2011 | 2 | 1 |
| 2012 | 5 | 4 |
| 2013 | 3 | 5 |
| 2014 | 1 | 5 |
| 2015 | 2 | 3 |
| 2016 | 3 | 0 |
| 2017 | 5 | 6 |
| 2018 | 4 | 12 |
| 2019 | 6 | 9 |
| 2020 | 8 | 12 |
| 2021 | 9 | 13 |
| 2022 | 13 | 7 |
| 2023 | 6 | 13 |
| 2024 | 9 | 8 |
| 2025 | 9 | 4 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flow control assembly having localized non- volatile memory9 Jun 2026US 12,650,687 B2IDEX Health & Science LLC
- Bottle pressurization delivery system19 May 2026US 12,631,602 B2Bio-Rad Laboratories, Inc.
- 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.
- Method of introducing a sample into a separation column and corresponding system31 Mar 2026US 12,590,932 B2Dionex Softron GmbH
- Non-contact sampler with an open-port interface for liquid chromatography systems10 Feb 2026US 12,546,753 B2DH Technologies Development Pte. Ltd.
- Method of introducing a sample into a separation column and corresponding system9 Jul 2026US 2026/0194496 A1Dionex Softron GmbH
- System equilibration for an analysis device30 Apr 2026US 2026/0118324 A1Agilent Technologies, Inc.
- Needle Assembly and a Needle Receiving Assembly With Integrated Alignment, a Capillary Injection Assembly, System And Method1 Jan 2026US 2026/0002915 A1Dionex Softron GmbH
- Liquid feeding unit, and liquid chromatography analysis system and control method thereof20 Nov 2025US 2025/0354965 A1Shizadzu Corporation
- Rotatable sample needle for analyzer5 Jun 2025US 2025/0180524 A1Agilent Technologies, Inc.
Most cited
By later US patents
- Method and apparatus for sample analysis143US 6,865,926 B2State of Oregon acting by and through the State Board of Higher Education on behalf of Portland State University · 2005
- Injector with minimal flow-interrupt transient55US 4,506,558 ARheodyne, LLC · 1985
- Method and apparatus for concentrating samples for analysis53US 6,952,945 B2State of Oregon acting by and through the State Board of Higher Education on behalf of Portland State University · 2005
- High pressure column assembly for a liquid chromatograph system51US 4,876,005 AThe Perkin-Elmer Corporation · 1989
- Sample injector for a liquid chromatograph43US 4,939,943 AHewlett-Packard Company · 1990