G01N 30/28
Control of physical parameters of the fluid carrier
G01N30/28 (Control of physical parameters of the fluid carrier) appears on 2,314 US grants and 2,071 published applications in this corpus.
Search patents in G01N- Granted patents
- 2,314
- Published applications
- 2,071
- Assignees
- 890
- Inventors
- 3,976
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 18 | 0 |
| 1978 | 15 | 0 |
| 1979 | 12 | 0 |
| 1980 | 15 | 0 |
| 1981 | 20 | 0 |
| 1982 | 20 | 0 |
| 1983 | 18 | 0 |
| 1984 | 20 | 0 |
| 1985 | 17 | 0 |
| 1986 | 19 | 0 |
| 1987 | 19 | 0 |
| 1988 | 23 | 0 |
| 1989 | 39 | 0 |
| 1990 | 37 | 0 |
| 1991 | 44 | 0 |
| 1992 | 52 | 0 |
| 1993 | 41 | 0 |
| 1994 | 45 | 0 |
| 1995 | 36 | 0 |
| 1996 | 30 | 0 |
| 1997 | 36 | 0 |
| 1998 | 47 | 0 |
| 1999 | 53 | 0 |
| 2000 | 52 | 0 |
| 2001 | 61 | 13 |
| 2002 | 47 | 54 |
| 2003 | 59 | 67 |
| 2004 | 39 | 66 |
| 2005 | 40 | 66 |
| 2006 | 38 | 47 |
| 2007 | 35 | 53 |
| 2008 | 34 | 64 |
| 2009 | 35 | 56 |
| 2010 | 33 | 59 |
| 2011 | 35 | 56 |
| 2012 | 44 | 58 |
| 2013 | 48 | 82 |
| 2014 | 45 | 60 |
| 2015 | 35 | 96 |
| 2016 | 62 | 83 |
| 2017 | 68 | 77 |
| 2018 | 61 | 109 |
| 2019 | 97 | 115 |
| 2020 | 83 | 129 |
| 2021 | 91 | 129 |
| 2022 | 97 | 129 |
| 2023 | 86 | 124 |
| 2024 | 132 | 111 |
| 2025 | 98 | 89 |
| 2026 | 67 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas chromatograph6 Oct 2026US 12,754,172 B2Shimadzu Corporation
- 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
- Preparative system15 Sep 2026US 12,736,507 B2Shimadzu Corporation
- Quick-cool coiled chromatographic column module8 Oct 2026US 2026/0309683 A1Mocon, Inc.
- Digital gas assist with flow control and gauge8 Oct 2026US 2026/0310242 A1Dionex Corporation
- Ultra-trace gas detection system and method of using the same1 Oct 2026US 2026/0298887 A1Volatylix, Inc.
- Dac apparatus24 Sep 2026US 2026/0287562 A1Honda Motor Co., Ltd.
- Modular liquid chromatography pump system17 Sep 2026US 2026/0276605 A1Micromics Technologies LLC
Most cited
By later US patents
- Silicon semiconductor wafer for analyzing micronic biological samples904US 4,908,112 AE. I. Du Pont de Nemours and Company · 1990
- Microscale fluid handling system662US 5,872,010 ANortheastern University · 1999
- Heated transfer line for capillary tubing563US 4,735,259 AHewlett-Packard Company · 1988
- Fully integrated miniaturized planar liquid sample handling and analysis device556US 5,571,410 AHewlett-Packard Company · 1996
- Miniaturized mass spectrometer system529US 5,313,061 AViking Instrument · 1994