G01N 30/722
Through a gas permeable barrier
Official title: {through a gas permeable barrier (membranes, porous layers)}
G01N30/722 (Through a gas permeable barrier) appears on 13 US grants and 17 published applications in this corpus.
Search patents in G01N- Granted patents
- 13
- Published applications
- 17
- Assignees
- 13
- Inventors
- 36
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Analytical system and method including switching between liquid chromatography fluidic streams20 May 2025US 12,306,147 B2Hitachi High-Tech Corporation
- Gas analyzer and membranes therefor31 Jan 2023US 11,569,079 B2Inficon GmbH
- Portable electronic system for the analysis of time-variable gaseous flows30 Jun 2020US 10,697,944 B2Nanotech Analysis S.R.L.
- Detection apparatus and detection method21 Jan 2020US 10,539,531 B2Nuctech Company Limited
- Detection apparatus and detection method1 Oct 2019US 10,429,348 B2Nuctech Company Limited
- Method of utilizing deuterium gas for chromatography applications, deuterium gas generator and devices for conservation thereof27 Mar 2025US 2025/0102479 A1
- Chromatoscopy: automated chemical analysis via in-column spectroscopy26 Sep 2024US 2024/0319151 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Analytical system and method including switching between liquid chromatography fluidic streams2 Feb 2023US 2023/0037141 A1Hitachi High-Tech Corporation
- Gas analyzer and membranes therefor14 Oct 2021US 2021/0319992 A1Inficon GmbH
- Systems and methods for monitoring microbiome markers/molecules in waste environments1 Oct 2020US 2020/0305849 A1Egesta Technologies, LLC
Most cited
By later US patents
- Miniaturized mass spectrometer system529US 5,313,061 AViking Instrument · 1994
- Calibration of mass spectrometry systems6US 8,648,293 B2Agilent Technologies, Inc. · 2014
- GC-MS analysis apparatus4US 8,237,116 B2Agilent Technologies, Inc. · 2012
- Gas sampling device and gas analyzer employing the same3US 8,586,915 B2Agilent Technologies, Inc. · 2013
- Detection apparatus and detection method2US 10,539,531 B2Nuctech Company Limited · 2020