G01N 2021/8585
Using porous sheets
Official title: {using porous sheets, e.g. for separating aerosols}
G01N2021/8585 (Using porous sheets) appears on 22 US grants and 14 published applications in this corpus.
Search patents in G01N- Granted patents
- 22
- Published applications
- 14
- Assignees
- 18
- Inventors
- 37
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
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| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 2 |
| 2022 | 3 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Near real-time, hands-off detection of airborne particulate contaminants and bioburden17 Jun 2025US 12,332,151 B2
- Gas sampling device and method13 Feb 2024US 11,898,946 B1Advanced Micro Instruments, Inc.
- Continuous dust accumulation monitoring system24 Oct 2023US 11,796,440 B2Industrial Intelligence, Inc.
- Laser-based monitoring tool31 Jan 2023US 11,566,519 B2Saudi Arabian Oil Company
- Systems and methods for monitoring air particulate matter30 Aug 2022US 11,428,618 B2Massachusetts Institute of Technology
- Near real-time, hands-off detection of airborne particulate contaminants and bioburden2 Mar 2023US 2023/0064876 A1
- Continuous dust accumulation monitoring system30 Jun 2022US 2022/0205894 A1Industrial Intelligence, Inc.
- Laser-based monitoring tool16 Sep 2021US 2021/0285325 A1Saudi Arabian Oil Company
- Continuous dust accumulation monitoring system1 Jul 2021US 2021/0199554 A1Industrial Intelligence, Inc.
- Laser-based in-situ exhaust gas sensor16 Jul 2020US 2020/0225126 A1Indrio Technologies, Inc
Most cited
By later US patents
- Sensor for measuring the concentration of a gaseous component in a fluid by absorption112US 4,800,886 AC. R. Bard, Inc. · 1989
- Multi-channel gas sample chamber42US 5,222,389 AGaztech International Corporation · 1993
- Method and apparatus for detecting gas35US 4,709,150 A1987
- Diffusion-type gas sample chamber30US 5,340,986 AGaztech International Corporation · 1994
- Diffusion-type gas sample chamber19US 5,502,308 AGaztech International Corporation · 1996