G01N 30/36
In high pressure liquid systems
Official title: in high pressure liquid systems
G01N30/36 (In high pressure liquid systems) appears on 210 US grants and 159 published applications in this corpus.
Search patents in G01N- Granted patents
- 210
- Published applications
- 159
- Assignees
- 96
- Inventors
- 385
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 1 |
| 2002 | 4 | 4 |
| 2003 | 10 | 7 |
| 2004 | 6 | 9 |
| 2005 | 3 | 4 |
| 2006 | 3 | 3 |
| 2007 | 3 | 6 |
| 2008 | 2 | 5 |
| 2009 | 4 | 1 |
| 2010 | 1 | 5 |
| 2011 | 3 | 5 |
| 2012 | 3 | 6 |
| 2013 | 3 | 6 |
| 2014 | 4 | 6 |
| 2015 | 2 | 11 |
| 2016 | 6 | 6 |
| 2017 | 6 | 6 |
| 2018 | 3 | 8 |
| 2019 | 12 | 15 |
| 2020 | 9 | 10 |
| 2021 | 9 | 13 |
| 2022 | 11 | 7 |
| 2023 | 7 | 5 |
| 2024 | 8 | 7 |
| 2025 | 3 | 2 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sample injector with metering device balancing pressure differences in an intermediate valve state21 Jul 2026US 12,687,526 B2Agilent Technologies, Inc.
- Sample injector with metering device balancing pressure differences in an intermediate valve state21 Jul 2026US 12,687,527 B2Agilent Technologies, Inc.
- Use of neutral pH mobile phases in reversed phase chromatography of acidic peptides12 May 2026US 12,624,065 B2Waters Technologies Corporation
- Method of introducing a sample into a separation column and corresponding system31 Mar 2026US 12,590,932 B2Dionex Softron GmbH
- Mixture of isomers of aminaphtone, analytical method for identifying them and pharmaceutical composition comprising said isomers10 Feb 2026US 12,546,756 B2Laboratori Baldacci SpA
- Method of introducing a sample into a separation column and corresponding system9 Jul 2026US 2026/0194496 A1Dionex Softron GmbH
- Liquid chromatography technique27 Nov 2025US 2025/0362277 A1Silcotek Corp.
- Sample separation device with fluid drive unit decoupling8 May 2025US 2025/0146984 A1Agilent Technologies, Inc.
- Device for controlling a piston pump unit for liquid chromatography22 Aug 2024US 2024/0280091 A1Dionex Softron GmbH
- Method of introducing a sample into a separation column and corresponding system22 Aug 2024US 2024/0280547 A1Dionex Softron GmbH
Most cited
By later US patents
- High pressure capillary connector120US 6,926,313 B1Sandia National Laboratories · 2005
- Pumping system94US 4,225,290 AInstrumentation Specialties Company · 1980
- Multichannel pump apparatus with microflow rate capability89US 5,253,981 A1993
- Apparatus for physical properties measurements at high temperatures and pressures80US 4,425,810 AChevron Research Company · 1984
- High pressure tubing coupler78US 4,313,828 ABrownlee Labs, Inc. · 1982