G01N 2001/225
Isokinetic, same flow rate for sample and bulk gas
Official title: {isokinetic, same flow rate for sample and bulk gas}
G01N2001/225 (Isokinetic, same flow rate for sample and bulk gas) appears on 119 US grants and 42 published applications in this corpus.
Search patents in G01N- Granted patents
- 119
- Published applications
- 42
- Assignees
- 90
- Inventors
- 215
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 2 | 2 |
| 2005 | 2 | 5 |
| 2006 | 4 | 2 |
| 2007 | 2 | 3 |
| 2008 | 3 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 2 |
| 2011 | 3 | 3 |
| 2012 | 2 | 2 |
| 2013 | 3 | 1 |
| 2014 | 2 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 4 | 3 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 0 | 3 |
| 2021 | 3 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air collecting device for a dust measuring system26 May 2026US 12,638,365 B2Zehnder Group International AG
- Steam sample concentrator and conditioner for on-line steam purity analysis7 Feb 2023US 11,573,158 B2Thermochem, Inc.
- (1→3)-β-d-glucan as a measure of active mold7 Jun 2022US 11,353,449 B2Inspirotec, Inc.
- Portable air sampling apparatus and air sampling installation comprising such an apparatus12 Oct 2021US 11,143,577 B2Cyno-Dev
- Continuous isokinetic sample device for stack gas having suction nozzle to which sectional area control device is attached, and automatic continuous measurement system for fine dust in stack gas comprising same combined therewith5 Oct 2021US 11,137,325 B2Chung Engineering Co. Ltd
- Collection apparatus, measurement system, collection method, and measurement method for particulate material30 Apr 2026US 2026/0118228 A1Railway Technical Research Institute
- Air collecting device for a dust measuring system25 Jul 2024US 2024/0248009 A1Zehnder Group International AG
- Systems and methods for collecting bioaerosols18 Aug 2022US 2022/0259553 A1Spornado Inc.
- Steam sample concentrator and conditioner for on-line steam purity analysis9 Dec 2021US 2021/0381938 A1Thermochem, Inc.
- Continuous isokinetic sample device for stack gas having suction nozzle to which sectional area control device is attached, and automatic continuous measurement system for fine dust in stack gas comprising same combined therewith3 Dec 2020US 2020/0378874 A1Chung Engineering Co. Ltd
Most cited
By later US patents
- Air pump for particle sensing using regenerative fan, and associated methods97US 6,167,107 AParticle Measuring Systems, Inc. · 2000
- Automated membrane filter sampler86US 5,005,430 AElectric Power Research Institute, Inc. · 1991
- Configurable multi-point sampling method and system for representative gas composition measurements in a stratified gas flow stream82US 6,904,815 B2General Electric Company · 2005
- Ensemble manifold, system and method for monitoring particles in clean environments61US 6,615,679 B1Particle Measuring Systems, Inc. · 2003
- Apparatus and method for the analysis of a particle-laden gas47US 3,983,743 ASierra Instruments, Inc. · 1976