G01N 30/32
Of pressure or speed
Official title: of pressure or speed (G01N30/36 takes precedence)
G01N30/32 (Of pressure or speed) appears on 985 US grants and 928 published applications in this corpus.
Search patents in G01N- Granted patents
- 985
- Published applications
- 928
- Assignees
- 365
- Inventors
- 1,665
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 13 | 0 |
| 1989 | 19 | 0 |
| 1990 | 18 | 0 |
| 1991 | 12 | 0 |
| 1992 | 14 | 0 |
| 1993 | 16 | 0 |
| 1994 | 12 | 0 |
| 1995 | 18 | 0 |
| 1996 | 9 | 0 |
| 1997 | 16 | 0 |
| 1998 | 15 | 0 |
| 1999 | 18 | 0 |
| 2000 | 14 | 0 |
| 2001 | 16 | 5 |
| 2002 | 20 | 20 |
| 2003 | 24 | 25 |
| 2004 | 22 | 26 |
| 2005 | 16 | 33 |
| 2006 | 12 | 18 |
| 2007 | 18 | 26 |
| 2008 | 19 | 31 |
| 2009 | 18 | 20 |
| 2010 | 16 | 32 |
| 2011 | 10 | 21 |
| 2012 | 22 | 27 |
| 2013 | 19 | 29 |
| 2014 | 24 | 26 |
| 2015 | 11 | 38 |
| 2016 | 29 | 40 |
| 2017 | 28 | 34 |
| 2018 | 23 | 46 |
| 2019 | 39 | 53 |
| 2020 | 39 | 56 |
| 2021 | 40 | 58 |
| 2022 | 43 | 68 |
| 2023 | 48 | 63 |
| 2024 | 60 | 47 |
| 2025 | 55 | 47 |
| 2026 | 37 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flow module selector29 Sep 2026US 12,748,083 B2Dh Co., Ltd.
- Chromatography devices and methods29 Sep 2026US 12,748,084 B2Dpx Technologies, Inc.
- Analysis system and method for impurity components in perfluoropropane22 Sep 2026US 12,742,752 B2Lansis Instrument (Shanghai) Co., Ltd
- Gas analysis system1 Sep 2026US 12,724,010 B2Shimadzu Corporation
- Systems and methods for injection monitoring and diagnostics for gas chromatography18 Aug 2026US 12,710,408 B2Thermo Finnigan LLC
- Digital gas assist with flow control and gauge8 Oct 2026US 2026/0310242 A1Dionex Corporation
- Dac apparatus24 Sep 2026US 2026/0287562 A1Honda Motor Co., Ltd.
- Modular liquid chromatography pump system17 Sep 2026US 2026/0276605 A1Micromics Technologies LLC
- Flow-restricted pneumatic modulator for a multidimensional gas chromatography system27 Aug 2026US 2026/0251624 A1The Regents of the University of Michigan
- Gdv optimized injection with sample pre-compression20 Aug 2026US 2026/0243736 A1Dionex Softron GmbH
Most cited
By later US patents
- Devices and methods for using centripetal acceleration to drive fluid movement in a microfluidics system370US 6,319,469 B1Silicon Valley Bank · 2001
- Flow-injection analysis and variable-flow light-scattering methods and apparatus for characterizing polymers317US 6,175,409 B1Symyx Technologies, Inc. · 2001
- High temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymers272US 4,798,081 AThe Dow Chemical Company · 1989
- High performance liquid chromatography method and apparatus193US 5,919,368 ACohesive Technologies, Inc. · 1999
- High performance liquid chromatography method and apparatus189US 5,795,469 ACohesive Technologies, Inc. · 1998